681903628

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{399241}}^1$

素因数の和:399313

約数の個数: 24

約数和(自身を含む): 1386168224

約数和(自身を除く): 704264596

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 399241, 798482, 1596964, 2794687, 5589374, 11178748, 24353701, 48707402, 97414804, 170475907, 340951814, 681903628]

約数ペア:

[(1, 681903628), (2, 340951814), (4, 170475907), (7, 97414804), (14, 48707402), (28, 24353701), (61, 11178748), (122, 5589374), (244, 2794687), (427, 1596964), (854, 798482), (1708, 399241)]