21718710

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1022

約数の個数: 96

約数和(自身を含む): 64078560

約数和(自身を除く): 42359850

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 26, 30, 38, 39, 45, 57, 65, 78, 90, 95, 114, 117, 130, 171, 190, 195, 234, 247, 285, 342, 390, 494, 570, 585, 741, 855, 977, 1170, 1235, 1482, 1710, 1954, 2223, 2470, 2931, 3705, 4446, 4885, 5862, 7410, 8793, 9770, 11115, 12701, 14655, 17586, 18563, 22230, 25402, 29310, 37126, 38103, 43965, 55689, 63505, 76206, 87930, 92815, 111378, 114309, 127010, 167067, 185630, 190515, 228618, 241319, 278445, 334134, 381030, 482638, 556890, 571545, 723957, 835335, 1143090, 1206595, 1447914, 1670670, 2171871, 2413190, 3619785, 4343742, 7239570, 10859355, 21718710]

約数ペア:

[(1, 21718710), (2, 10859355), (3, 7239570), (5, 4343742), (6, 3619785), (9, 2413190), (10, 2171871), (13, 1670670), (15, 1447914), (18, 1206595), (19, 1143090), (26, 835335), (30, 723957), (38, 571545), (39, 556890), (45, 482638), (57, 381030), (65, 334134), (78, 278445), (90, 241319), (95, 228618), (114, 190515), (117, 185630), (130, 167067), (171, 127010), (190, 114309), (195, 111378), (234, 92815), (247, 87930), (285, 76206), (342, 63505), (390, 55689), (494, 43965), (570, 38103), (585, 37126), (741, 29310), (855, 25402), (977, 22230), (1170, 18563), (1235, 17586), (1482, 14655), (1710, 12701), (1954, 11115), (2223, 9770), (2470, 8793), (2931, 7410), (3705, 5862), (4446, 4885)]