19702108

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{55343}}^1$

素因数の和:55436

約数の個数: 12

約数和(自身を含む): 34866720

約数和(自身を除く): 15164612

約数列:

[1, 2, 4, 89, 178, 356, 55343, 110686, 221372, 4925527, 9851054, 19702108]

約数ペア:

[(1, 19702108), (2, 9851054), (4, 4925527), (89, 221372), (178, 110686), (356, 55343)]