221871494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{31489}}^1$

素因数の和:31775

約数の個数: 16

約数和(自身を含む): 359741760

約数和(自身を除く): 137870266

約数列:

[1, 2, 13, 26, 271, 542, 3523, 7046, 31489, 62978, 409357, 818714, 8533519, 17067038, 110935747, 221871494]

約数ペア:

[(1, 221871494), (2, 110935747), (13, 17067038), (26, 8533519), (271, 818714), (542, 409357), (3523, 62978), (7046, 31489)]