20211128905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1\times {\mathrm{34961}}^1$

素因数の和:35457

約数の個数: 32

約数和(自身を含む): 27669765888

約数和(自身を除く): 7458636983

約数列:

[1, 5, 11, 23, 55, 115, 253, 457, 1265, 2285, 5027, 10511, 25135, 34961, 52555, 115621, 174805, 384571, 578105, 804103, 1922855, 4020515, 8845133, 15977177, 44225665, 79885885, 175748947, 367475071, 878744735, 1837375355, 4042225781, 20211128905]

約数ペア:

[(1, 20211128905), (5, 4042225781), (11, 1837375355), (23, 878744735), (55, 367475071), (115, 175748947), (253, 79885885), (457, 44225665), (1265, 15977177), (2285, 8845133), (5027, 4020515), (10511, 1922855), (25135, 804103), (34961, 578105), (52555, 384571), (115621, 174805)]