20372511

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{7537}}^1$

素因数の和:7610

約数の個数: 16

約数和(自身を含む): 29307744

約数和(自身を除く): 8935233

約数列:

[1, 3, 17, 51, 53, 159, 901, 2703, 7537, 22611, 128129, 384387, 399461, 1198383, 6790837, 20372511]

約数ペア:

[(1, 20372511), (3, 6790837), (17, 1198383), (51, 399461), (53, 384387), (159, 128129), (901, 22611), (2703, 7537)]