21663420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:675

約数の個数: 96

約数和(自身を含む): 66017280

約数和(自身を除く): 44353860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 31, 38, 57, 60, 62, 76, 93, 95, 114, 124, 155, 186, 190, 228, 285, 310, 372, 380, 465, 570, 589, 613, 620, 930, 1140, 1178, 1226, 1767, 1839, 1860, 2356, 2452, 2945, 3065, 3534, 3678, 5890, 6130, 7068, 7356, 8835, 9195, 11647, 11780, 12260, 17670, 18390, 19003, 23294, 34941, 35340, 36780, 38006, 46588, 57009, 58235, 69882, 76012, 95015, 114018, 116470, 139764, 174705, 190030, 228036, 232940, 285045, 349410, 361057, 380060, 570090, 698820, 722114, 1083171, 1140180, 1444228, 1805285, 2166342, 3610570, 4332684, 5415855, 7221140, 10831710, 21663420]

約数ペア:

[(1, 21663420), (2, 10831710), (3, 7221140), (4, 5415855), (5, 4332684), (6, 3610570), (10, 2166342), (12, 1805285), (15, 1444228), (19, 1140180), (20, 1083171), (30, 722114), (31, 698820), (38, 570090), (57, 380060), (60, 361057), (62, 349410), (76, 285045), (93, 232940), (95, 228036), (114, 190030), (124, 174705), (155, 139764), (186, 116470), (190, 114018), (228, 95015), (285, 76012), (310, 69882), (372, 58235), (380, 57009), (465, 46588), (570, 38006), (589, 36780), (613, 35340), (620, 34941), (930, 23294), (1140, 19003), (1178, 18390), (1226, 17670), (1767, 12260), (1839, 11780), (1860, 11647), (2356, 9195), (2452, 8835), (2945, 7356), (3065, 7068), (3534, 6130), (3678, 5890)]