21870664

素因数分解:

$2^3\times {\mathrm{431}}^1\times {\mathrm{6343}}^1$

素因数の和:6780

約数の個数: 16

約数和(自身を含む): 41109120

約数和(自身を除く): 19238456

約数列:

[1, 2, 4, 8, 431, 862, 1724, 3448, 6343, 12686, 25372, 50744, 2733833, 5467666, 10935332, 21870664]

約数ペア:

[(1, 21870664), (2, 10935332), (4, 5467666), (8, 2733833), (431, 50744), (862, 25372), (1724, 12686), (3448, 6343)]