211556905

素因数分解:

$5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{359}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 295488000

約数和(自身を除く): 83931095

約数列:

[1, 5, 7, 35, 113, 149, 359, 565, 745, 791, 1043, 1795, 2513, 3955, 5215, 12565, 16837, 40567, 53491, 84185, 117859, 202835, 267455, 283969, 374437, 589295, 1419845, 1872185, 6044483, 30222415, 42311381, 211556905]

約数ペア:

[(1, 211556905), (5, 42311381), (7, 30222415), (35, 6044483), (113, 1872185), (149, 1419845), (359, 589295), (565, 374437), (745, 283969), (791, 267455), (1043, 202835), (1795, 117859), (2513, 84185), (3955, 53491), (5215, 40567), (12565, 16837)]