20707421

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{1229}}^1$

素因数の和:1348

約数の個数: 16

約数和(自身を含む): 24796800

約数和(自身を除く): 4089379

約数列:

[1, 7, 29, 83, 203, 581, 1229, 2407, 8603, 16849, 35641, 102007, 249487, 714049, 2958203, 20707421]

約数ペア:

[(1, 20707421), (7, 2958203), (29, 714049), (83, 249487), (203, 102007), (581, 35641), (1229, 16849), (2407, 8603)]