20219898601

素因数分解:

$7^1\times {\mathrm{131}}^1\times {\mathrm{2129}}^1\times {\mathrm{10357}}^1$

素因数の和:12624

約数の個数: 16

約数和(自身を含む): 23298042240

約数和(自身を除く): 3078143639

約数列:

[1, 7, 131, 917, 2129, 10357, 14903, 72499, 278899, 1356767, 1952293, 9497369, 22050053, 154350371, 2888556943, 20219898601]

約数ペア:

[(1, 20219898601), (7, 2888556943), (131, 154350371), (917, 22050053), (2129, 9497369), (10357, 1952293), (14903, 1356767), (72499, 278899)]