20490542

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:292

約数の個数: 32

約数和(自身を含む): 33802272

約数和(自身を除く): 13311730

約数列:

[1, 2, 17, 34, 53, 83, 106, 137, 166, 274, 901, 1411, 1802, 2329, 2822, 4399, 4658, 7261, 8798, 11371, 14522, 22742, 74783, 123437, 149566, 193307, 246874, 386614, 602663, 1205326, 10245271, 20490542]

約数ペア:

[(1, 20490542), (2, 10245271), (17, 1205326), (34, 602663), (53, 386614), (83, 246874), (106, 193307), (137, 149566), (166, 123437), (274, 74783), (901, 22742), (1411, 14522), (1802, 11371), (2329, 8798), (2822, 7261), (4399, 4658)]