21957665

素因数分解:

$5^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 26849280

約数和(自身を除く): 4891615

約数列:

[1, 5, 127, 151, 229, 635, 755, 1145, 19177, 29083, 34579, 95885, 145415, 172895, 4391533, 21957665]

約数ペア:

[(1, 21957665), (5, 4391533), (127, 172895), (151, 145415), (229, 95885), (635, 34579), (755, 29083), (1145, 19177)]