21039200

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:74

約数の個数: 216

約数和(自身を含む): 67151952

約数和(自身を除く): 46112752

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 17, 20, 25, 26, 28, 32, 34, 35, 40, 50, 52, 56, 65, 68, 70, 80, 85, 91, 100, 104, 112, 119, 130, 136, 140, 160, 170, 175, 182, 200, 208, 221, 224, 238, 260, 272, 280, 289, 325, 340, 350, 364, 400, 416, 425, 442, 455, 476, 520, 544, 560, 578, 595, 650, 680, 700, 728, 800, 850, 884, 910, 952, 1040, 1105, 1120, 1156, 1190, 1300, 1360, 1400, 1445, 1456, 1547, 1700, 1768, 1820, 1904, 2023, 2080, 2210, 2275, 2312, 2380, 2600, 2720, 2800, 2890, 2912, 2975, 3094, 3400, 3536, 3640, 3757, 3808, 4046, 4420, 4550, 4624, 4760, 5200, 5525, 5600, 5780, 5950, 6188, 6800, 7072, 7225, 7280, 7514, 7735, 8092, 8840, 9100, 9248, 9520, 10115, 10400, 11050, 11560, 11900, 12376, 13600, 14450, 14560, 15028, 15470, 16184, 17680, 18200, 18785, 19040, 20230, 22100, 23120, 23800, 24752, 26299, 28900, 30056, 30940, 32368, 35360, 36400, 37570, 38675, 40460, 44200, 46240, 47600, 49504, 50575, 52598, 57800, 60112, 61880, 64736, 72800, 75140, 77350, 80920, 88400, 93925, 95200, 101150, 105196, 115600, 120224, 123760, 131495, 150280, 154700, 161840, 176800, 187850, 202300, 210392, 231200, 247520, 262990, 300560, 309400, 323680, 375700, 404600, 420784, 525980, 601120, 618800, 657475, 751400, 809200, 841568, 1051960, 1237600, 1314950, 1502800, 1618400, 2103920, 2629900, 3005600, 4207840, 5259800, 10519600, 21039200]

約数ペア:

[(1, 21039200), (2, 10519600), (4, 5259800), (5, 4207840), (7, 3005600), (8, 2629900), (10, 2103920), (13, 1618400), (14, 1502800), (16, 1314950), (17, 1237600), (20, 1051960), (25, 841568), (26, 809200), (28, 751400), (32, 657475), (34, 618800), (35, 601120), (40, 525980), (50, 420784), (52, 404600), (56, 375700), (65, 323680), (68, 309400), (70, 300560), (80, 262990), (85, 247520), (91, 231200), (100, 210392), (104, 202300), (112, 187850), (119, 176800), (130, 161840), (136, 154700), (140, 150280), (160, 131495), (170, 123760), (175, 120224), (182, 115600), (200, 105196), (208, 101150), (221, 95200), (224, 93925), (238, 88400), (260, 80920), (272, 77350), (280, 75140), (289, 72800), (325, 64736), (340, 61880), (350, 60112), (364, 57800), (400, 52598), (416, 50575), (425, 49504), (442, 47600), (455, 46240), (476, 44200), (520, 40460), (544, 38675), (560, 37570), (578, 36400), (595, 35360), (650, 32368), (680, 30940), (700, 30056), (728, 28900), (800, 26299), (850, 24752), (884, 23800), (910, 23120), (952, 22100), (1040, 20230), (1105, 19040), (1120, 18785), (1156, 18200), (1190, 17680), (1300, 16184), (1360, 15470), (1400, 15028), (1445, 14560), (1456, 14450), (1547, 13600), (1700, 12376), (1768, 11900), (1820, 11560), (1904, 11050), (2023, 10400), (2080, 10115), (2210, 9520), (2275, 9248), (2312, 9100), (2380, 8840), (2600, 8092), (2720, 7735), (2800, 7514), (2890, 7280), (2912, 7225), (2975, 7072), (3094, 6800), (3400, 6188), (3536, 5950), (3640, 5780), (3757, 5600), (3808, 5525), (4046, 5200), (4420, 4760), (4550, 4624)]