21027326

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{1217}}^1$

素因数の和:1435

約数の個数: 16

約数和(自身を含む): 32359824

約数和(自身を除く): 11332498

約数列:

[1, 2, 53, 106, 163, 326, 1217, 2434, 8639, 17278, 64501, 129002, 198371, 396742, 10513663, 21027326]

約数ペア:

[(1, 21027326), (2, 10513663), (53, 396742), (106, 198371), (163, 129002), (326, 64501), (1217, 17278), (2434, 8639)]