21550264

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{677}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 42469920

約数和(自身を除く): 20919656

約数列:

[1, 2, 4, 8, 23, 46, 92, 173, 184, 346, 677, 692, 1354, 1384, 2708, 3979, 5416, 7958, 15571, 15916, 31142, 31832, 62284, 117121, 124568, 234242, 468484, 936968, 2693783, 5387566, 10775132, 21550264]

約数ペア:

[(1, 21550264), (2, 10775132), (4, 5387566), (8, 2693783), (23, 936968), (46, 468484), (92, 234242), (173, 124568), (184, 117121), (346, 62284), (677, 31832), (692, 31142), (1354, 15916), (1384, 15571), (2708, 7958), (3979, 5416)]