12912991

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3461}}^1$

素因数の和:3522

約数の個数: 16

約数和(自身を含む): 16285248

約数和(自身を除く): 3372257

約数列:

[1, 7, 13, 41, 91, 287, 533, 3461, 3731, 24227, 44993, 141901, 314951, 993307, 1844713, 12912991]

約数ペア:

[(1, 12912991), (7, 1844713), (13, 993307), (41, 314951), (91, 141901), (287, 44993), (533, 24227), (3461, 3731)]