21648540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 63737856

約数和(自身を除く): 42089316

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 103, 113, 124, 155, 186, 206, 226, 309, 310, 339, 372, 412, 452, 465, 515, 565, 618, 620, 678, 930, 1030, 1130, 1236, 1356, 1545, 1695, 1860, 2060, 2260, 3090, 3193, 3390, 3503, 6180, 6386, 6780, 7006, 9579, 10509, 11639, 12772, 14012, 15965, 17515, 19158, 21018, 23278, 31930, 34917, 35030, 38316, 42036, 46556, 47895, 52545, 58195, 63860, 69834, 70060, 95790, 105090, 116390, 139668, 174585, 191580, 210180, 232780, 349170, 360809, 698340, 721618, 1082427, 1443236, 1804045, 2164854, 3608090, 4329708, 5412135, 7216180, 10824270, 21648540]

約数ペア:

[(1, 21648540), (2, 10824270), (3, 7216180), (4, 5412135), (5, 4329708), (6, 3608090), (10, 2164854), (12, 1804045), (15, 1443236), (20, 1082427), (30, 721618), (31, 698340), (60, 360809), (62, 349170), (93, 232780), (103, 210180), (113, 191580), (124, 174585), (155, 139668), (186, 116390), (206, 105090), (226, 95790), (309, 70060), (310, 69834), (339, 63860), (372, 58195), (412, 52545), (452, 47895), (465, 46556), (515, 42036), (565, 38316), (618, 35030), (620, 34917), (678, 31930), (930, 23278), (1030, 21018), (1130, 19158), (1236, 17515), (1356, 15965), (1545, 14012), (1695, 12772), (1860, 11639), (2060, 10509), (2260, 9579), (3090, 7006), (3193, 6780), (3390, 6386), (3503, 6180)]