397888942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{70373}}^1$

素因数の和:70643

約数の個数: 16

約数和(自身を含む): 653633712

約数和(自身を除く): 255744770

約数列:

[1, 2, 11, 22, 257, 514, 2827, 5654, 70373, 140746, 774103, 1548206, 18085861, 36171722, 198944471, 397888942]

約数ペア:

[(1, 397888942), (2, 198944471), (11, 36171722), (22, 18085861), (257, 1548206), (514, 774103), (2827, 140746), (5654, 70373)]