20090399

素因数分解:

$7^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 23493120

約数和(自身を除く): 3402721

約数列:

[1, 7, 83, 151, 229, 581, 1057, 1603, 12533, 19007, 34579, 87731, 133049, 242053, 2870057, 20090399]

約数ペア:

[(1, 20090399), (7, 2870057), (83, 242053), (151, 133049), (229, 87731), (581, 34579), (1057, 19007), (1603, 12533)]