18938015

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{997}}^1$

素因数の和:1162

約数の個数: 16

約数和(自身を含む): 23712480

約数和(自身を除く): 4774465

約数列:

[1, 5, 29, 131, 145, 655, 997, 3799, 4985, 18995, 28913, 130607, 144565, 653035, 3787603, 18938015]

約数ペア:

[(1, 18938015), (5, 3787603), (29, 653035), (131, 144565), (145, 130607), (655, 28913), (997, 18995), (3799, 4985)]