21878648

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{248621}}^1$

素因数の和:248638

約数の個数: 16

約数和(自身を含む): 44751960

約数和(自身を除く): 22873312

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 248621, 497242, 994484, 1988968, 2734831, 5469662, 10939324, 21878648]

約数ペア:

[(1, 21878648), (2, 10939324), (4, 5469662), (8, 2734831), (11, 1988968), (22, 994484), (44, 497242), (88, 248621)]