21212568

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 62702640

約数和(自身を除く): 41490072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 131, 156, 173, 234, 262, 312, 346, 393, 468, 519, 524, 692, 786, 936, 1038, 1048, 1179, 1384, 1557, 1572, 1703, 2076, 2249, 2358, 3114, 3144, 3406, 4152, 4498, 4716, 5109, 6228, 6747, 6812, 8996, 9432, 10218, 12456, 13494, 13624, 15327, 17992, 20241, 20436, 22663, 26988, 30654, 40482, 40872, 45326, 53976, 61308, 67989, 80964, 90652, 122616, 135978, 161928, 181304, 203967, 271956, 294619, 407934, 543912, 589238, 815868, 883857, 1178476, 1631736, 1767714, 2356952, 2651571, 3535428, 5303142, 7070856, 10606284, 21212568]

約数ペア:

[(1, 21212568), (2, 10606284), (3, 7070856), (4, 5303142), (6, 3535428), (8, 2651571), (9, 2356952), (12, 1767714), (13, 1631736), (18, 1178476), (24, 883857), (26, 815868), (36, 589238), (39, 543912), (52, 407934), (72, 294619), (78, 271956), (104, 203967), (117, 181304), (131, 161928), (156, 135978), (173, 122616), (234, 90652), (262, 80964), (312, 67989), (346, 61308), (393, 53976), (468, 45326), (519, 40872), (524, 40482), (692, 30654), (786, 26988), (936, 22663), (1038, 20436), (1048, 20241), (1179, 17992), (1384, 15327), (1557, 13624), (1572, 13494), (1703, 12456), (2076, 10218), (2249, 9432), (2358, 8996), (3114, 6812), (3144, 6747), (3406, 6228), (4152, 5109), (4498, 4716)]