28021510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{254741}}^1$

素因数の和:254759

約数の個数: 16

約数和(自身を含む): 55024272

約数和(自身を除く): 27002762

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 254741, 509482, 1273705, 2547410, 2802151, 5604302, 14010755, 28021510]

約数ペア:

[(1, 28021510), (2, 14010755), (5, 5604302), (10, 2802151), (11, 2547410), (22, 1273705), (55, 509482), (110, 254741)]