21881102

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{2539}}^1$

素因数の和:2711

約数の個数: 16

約数和(自身を含む): 34137600

約数和(自身を除く): 12256498

約数列:

[1, 2, 31, 62, 139, 278, 2539, 4309, 5078, 8618, 78709, 157418, 352921, 705842, 10940551, 21881102]

約数ペア:

[(1, 21881102), (2, 10940551), (31, 705842), (62, 352921), (139, 157418), (278, 78709), (2539, 8618), (4309, 5078)]