139487684

素因数分解:

$2^2\times 7^1\times {\mathrm{2221}}^1\times {\mathrm{2243}}^1$

素因数の和:4475

約数の個数: 24

約数和(自身を含む): 279225408

約数和(自身を除く): 139737724

約数列:

[1, 2, 4, 7, 14, 28, 2221, 2243, 4442, 4486, 8884, 8972, 15547, 15701, 31094, 31402, 62188, 62804, 4981703, 9963406, 19926812, 34871921, 69743842, 139487684]

約数ペア:

[(1, 139487684), (2, 69743842), (4, 34871921), (7, 19926812), (14, 9963406), (28, 4981703), (2221, 62804), (2243, 62188), (4442, 31402), (4486, 31094), (8884, 15701), (8972, 15547)]