392904211

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 486259200

約数和(自身を除く): 93354989

約数列:

[1, 7, 19, 53, 133, 139, 371, 401, 973, 1007, 2641, 2807, 7049, 7367, 7619, 18487, 21253, 51569, 53333, 55739, 139973, 148771, 390173, 403807, 979811, 1059041, 2826649, 2954167, 7413287, 20679169, 56129173, 392904211]

約数ペア:

[(1, 392904211), (7, 56129173), (19, 20679169), (53, 7413287), (133, 2954167), (139, 2826649), (371, 1059041), (401, 979811), (973, 403807), (1007, 390173), (2641, 148771), (2807, 139973), (7049, 55739), (7367, 53333), (7619, 51569), (18487, 21253)]