21306060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2887}}^1$

素因数の和:2943

約数の個数: 72

約数和(自身を含む): 66227616

約数和(自身を除く): 44921556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2887, 3690, 5774, 7380, 8661, 11548, 14435, 17322, 25983, 28870, 34644, 43305, 51966, 57740, 86610, 103932, 118367, 129915, 173220, 236734, 259830, 355101, 473468, 519660, 591835, 710202, 1065303, 1183670, 1420404, 1775505, 2130606, 2367340, 3551010, 4261212, 5326515, 7102020, 10653030, 21306060]

約数ペア:

[(1, 21306060), (2, 10653030), (3, 7102020), (4, 5326515), (5, 4261212), (6, 3551010), (9, 2367340), (10, 2130606), (12, 1775505), (15, 1420404), (18, 1183670), (20, 1065303), (30, 710202), (36, 591835), (41, 519660), (45, 473468), (60, 355101), (82, 259830), (90, 236734), (123, 173220), (164, 129915), (180, 118367), (205, 103932), (246, 86610), (369, 57740), (410, 51966), (492, 43305), (615, 34644), (738, 28870), (820, 25983), (1230, 17322), (1476, 14435), (1845, 11548), (2460, 8661), (2887, 7380), (3690, 5774)]