21006989640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{641239}}^1$

素因数の和:641276

約数の個数: 192

約数和(自身を含む): 84028089600

約数和(自身を除く): 63021099960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 52, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 117, 120, 126, 130, 140, 156, 168, 180, 182, 195, 210, 234, 252, 260, 273, 280, 312, 315, 360, 364, 390, 420, 455, 468, 504, 520, 546, 585, 630, 728, 780, 819, 840, 910, 936, 1092, 1170, 1260, 1365, 1560, 1638, 1820, 2184, 2340, 2520, 2730, 3276, 3640, 4095, 4680, 5460, 6552, 8190, 10920, 16380, 32760, 641239, 1282478, 1923717, 2564956, 3206195, 3847434, 4488673, 5129912, 5771151, 6412390, 7694868, 8336107, 8977346, 9618585, 11542302, 12824780, 13466019, 15389736, 16672214, 17954692, 19237170, 22443365, 23084604, 25008321, 25649560, 26932038, 28855755, 33344428, 35909384, 38474340, 40398057, 41680535, 44886730, 46169208, 50016642, 53864076, 57711510, 58352749, 66688856, 67330095, 75024963, 76948680, 80796114, 83361070, 89773460, 100033284, 107728152, 115423020, 116705498, 125041605, 134660190, 150049926, 161592228, 166722140, 175058247, 179546920, 200066568, 201990285, 230846040, 233410996, 250083210, 269320380, 291763745, 300099852, 323184456, 333444280, 350116494, 375124815, 403980570, 466821992, 500166420, 525174741, 538640760, 583527490, 600199704, 700232988, 750249630, 807961140, 875291235, 1000332840, 1050349482, 1167054980, 1400465976, 1500499260, 1615922280, 1750582470, 2100698964, 2334109960, 2625873705, 3000998520, 3501164940, 4201397928, 5251747410, 7002329880, 10503494820, 21006989640]

約数ペア:

[(1, 21006989640), (2, 10503494820), (3, 7002329880), (4, 5251747410), (5, 4201397928), (6, 3501164940), (7, 3000998520), (8, 2625873705), (9, 2334109960), (10, 2100698964), (12, 1750582470), (13, 1615922280), (14, 1500499260), (15, 1400465976), (18, 1167054980), (20, 1050349482), (21, 1000332840), (24, 875291235), (26, 807961140), (28, 750249630), (30, 700232988), (35, 600199704), (36, 583527490), (39, 538640760), (40, 525174741), (42, 500166420), (45, 466821992), (52, 403980570), (56, 375124815), (60, 350116494), (63, 333444280), (65, 323184456), (70, 300099852), (72, 291763745), (78, 269320380), (84, 250083210), (90, 233410996), (91, 230846040), (104, 201990285), (105, 200066568), (117, 179546920), (120, 175058247), (126, 166722140), (130, 161592228), (140, 150049926), (156, 134660190), (168, 125041605), (180, 116705498), (182, 115423020), (195, 107728152), (210, 100033284), (234, 89773460), (252, 83361070), (260, 80796114), (273, 76948680), (280, 75024963), (312, 67330095), (315, 66688856), (360, 58352749), (364, 57711510), (390, 53864076), (420, 50016642), (455, 46169208), (468, 44886730), (504, 41680535), (520, 40398057), (546, 38474340), (585, 35909384), (630, 33344428), (728, 28855755), (780, 26932038), (819, 25649560), (840, 25008321), (910, 23084604), (936, 22443365), (1092, 19237170), (1170, 17954692), (1260, 16672214), (1365, 15389736), (1560, 13466019), (1638, 12824780), (1820, 11542302), (2184, 9618585), (2340, 8977346), (2520, 8336107), (2730, 7694868), (3276, 6412390), (3640, 5771151), (4095, 5129912), (4680, 4488673), (5460, 3847434), (6552, 3206195), (8190, 2564956), (10920, 1923717), (16380, 1282478), (32760, 641239)]