645351

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:478

約数の個数: 16

約数和(自身を含む): 998400

約数和(自身を除く): 353049

約数列:

[1, 3, 7, 21, 79, 237, 389, 553, 1167, 1659, 2723, 8169, 30731, 92193, 215117, 645351]

約数ペア:

[(1, 645351), (3, 215117), (7, 92193), (21, 30731), (79, 8169), (237, 2723), (389, 1659), (553, 1167)]