20492715

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 33825600

約数和(自身を除く): 13332885

約数列:

[1, 3, 5, 15, 53, 149, 159, 173, 265, 447, 519, 745, 795, 865, 2235, 2595, 7897, 9169, 23691, 25777, 27507, 39485, 45845, 77331, 118455, 128885, 137535, 386655, 1366181, 4098543, 6830905, 20492715]

約数ペア:

[(1, 20492715), (3, 6830905), (5, 4098543), (15, 1366181), (53, 386655), (149, 137535), (159, 128885), (173, 118455), (265, 77331), (447, 45845), (519, 39485), (745, 27507), (795, 25777), (865, 23691), (2235, 9169), (2595, 7897)]