21739080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 72990720

約数和(自身を除く): 51251640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 43, 44, 55, 60, 66, 86, 88, 110, 120, 129, 132, 165, 172, 215, 220, 258, 264, 330, 344, 383, 430, 440, 473, 516, 645, 660, 766, 860, 946, 1032, 1149, 1290, 1320, 1419, 1532, 1720, 1892, 1915, 2298, 2365, 2580, 2838, 3064, 3784, 3830, 4213, 4596, 4730, 5160, 5676, 5745, 7095, 7660, 8426, 9192, 9460, 11352, 11490, 12639, 14190, 15320, 16469, 16852, 18920, 21065, 22980, 25278, 28380, 32938, 33704, 42130, 45960, 49407, 50556, 56760, 63195, 65876, 82345, 84260, 98814, 101112, 126390, 131752, 164690, 168520, 181159, 197628, 247035, 252780, 329380, 362318, 395256, 494070, 505560, 543477, 658760, 724636, 905795, 988140, 1086954, 1449272, 1811590, 1976280, 2173908, 2717385, 3623180, 4347816, 5434770, 7246360, 10869540, 21739080]

約数ペア:

[(1, 21739080), (2, 10869540), (3, 7246360), (4, 5434770), (5, 4347816), (6, 3623180), (8, 2717385), (10, 2173908), (11, 1976280), (12, 1811590), (15, 1449272), (20, 1086954), (22, 988140), (24, 905795), (30, 724636), (33, 658760), (40, 543477), (43, 505560), (44, 494070), (55, 395256), (60, 362318), (66, 329380), (86, 252780), (88, 247035), (110, 197628), (120, 181159), (129, 168520), (132, 164690), (165, 131752), (172, 126390), (215, 101112), (220, 98814), (258, 84260), (264, 82345), (330, 65876), (344, 63195), (383, 56760), (430, 50556), (440, 49407), (473, 45960), (516, 42130), (645, 33704), (660, 32938), (766, 28380), (860, 25278), (946, 22980), (1032, 21065), (1149, 18920), (1290, 16852), (1320, 16469), (1419, 15320), (1532, 14190), (1720, 12639), (1892, 11490), (1915, 11352), (2298, 9460), (2365, 9192), (2580, 8426), (2838, 7660), (3064, 7095), (3784, 5745), (3830, 5676), (4213, 5160), (4596, 4730)]