391403684

素因数分解:

$2^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{138403}}^1$

素因数の和:138515

約数の個数: 24

約数和(自身を含む): 790563648

約数和(自身を除く): 399159964

約数列:

[1, 2, 4, 7, 14, 28, 101, 202, 404, 707, 1414, 2828, 138403, 276806, 553612, 968821, 1937642, 3875284, 13978703, 27957406, 55914812, 97850921, 195701842, 391403684]

約数ペア:

[(1, 391403684), (2, 195701842), (4, 97850921), (7, 55914812), (14, 27957406), (28, 13978703), (101, 3875284), (202, 1937642), (404, 968821), (707, 553612), (1414, 276806), (2828, 138403)]