21134060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1019}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 47809440

約数和(自身を除く): 26675380

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 610, 1019, 1037, 1220, 2038, 2074, 4076, 4148, 5095, 5185, 10190, 10370, 17323, 20380, 20740, 34646, 62159, 69292, 86615, 124318, 173230, 248636, 310795, 346460, 621590, 1056703, 1243180, 2113406, 4226812, 5283515, 10567030, 21134060]

約数ペア:

[(1, 21134060), (2, 10567030), (4, 5283515), (5, 4226812), (10, 2113406), (17, 1243180), (20, 1056703), (34, 621590), (61, 346460), (68, 310795), (85, 248636), (122, 173230), (170, 124318), (244, 86615), (305, 69292), (340, 62159), (610, 34646), (1019, 20740), (1037, 20380), (1220, 17323), (2038, 10370), (2074, 10190), (4076, 5185), (4148, 5095)]