18960995

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{821}}^1$

素因数の和:1006

約数の個数: 16

約数和(自身を含む): 23673600

約数和(自身を除く): 4712605

約数列:

[1, 5, 31, 149, 155, 745, 821, 4105, 4619, 23095, 25451, 122329, 127255, 611645, 3792199, 18960995]

約数ペア:

[(1, 18960995), (5, 3792199), (31, 611645), (149, 127255), (155, 122329), (745, 25451), (821, 23095), (4105, 4619)]