21776204

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{821}}^1$

素因数の和:1193

約数の個数: 24

約数和(自身を含む): 40278000

約数和(自身を除く): 18501796

約数列:

[1, 2, 4, 19, 38, 76, 349, 698, 821, 1396, 1642, 3284, 6631, 13262, 15599, 26524, 31198, 62396, 286529, 573058, 1146116, 5444051, 10888102, 21776204]

約数ペア:

[(1, 21776204), (2, 10888102), (4, 5444051), (19, 1146116), (38, 573058), (76, 286529), (349, 62396), (698, 31198), (821, 26524), (1396, 15599), (1642, 13262), (3284, 6631)]