20415351

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{241}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 31781376

約数和(自身を除く): 11366025

約数列:

[1, 3, 11, 17, 33, 51, 151, 187, 241, 453, 561, 723, 1661, 2567, 2651, 4097, 4983, 7701, 7953, 12291, 28237, 36391, 45067, 84711, 109173, 135201, 400301, 618647, 1200903, 1855941, 6805117, 20415351]

約数ペア:

[(1, 20415351), (3, 6805117), (11, 1855941), (17, 1200903), (33, 618647), (51, 400301), (151, 135201), (187, 109173), (241, 84711), (453, 45067), (561, 36391), (723, 28237), (1661, 12291), (2567, 7953), (2651, 7701), (4097, 4983)]