21940402

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{52489}}^1$

素因数の和:52521

約数の個数: 16

約数和(自身を含む): 37792800

約数和(自身を除く): 15852398

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 52489, 104978, 577379, 997291, 1154758, 1994582, 10970201, 21940402]

約数ペア:

[(1, 21940402), (2, 10970201), (11, 1994582), (19, 1154758), (22, 997291), (38, 577379), (209, 104978), (418, 52489)]