21105888088

素因数分解:

$2^3\times {\mathrm{163}}^1\times {\mathrm{16185497}}^1$

素因数の和:16185666

約数の個数: 16

約数和(自身を含む): 39816325080

約数和(自身を除く): 18710436992

約数列:

[1, 2, 4, 8, 163, 326, 652, 1304, 16185497, 32370994, 64741988, 129483976, 2638236011, 5276472022, 10552944044, 21105888088]

約数ペア:

[(1, 21105888088), (2, 10552944044), (4, 5276472022), (8, 2638236011), (163, 129483976), (326, 64741988), (652, 32370994), (1304, 16185497)]