18158987

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{2087}}^1$

素因数の和:2218

約数の個数: 16

約数和(自身を含む): 22851072

約数和(自身を除く): 4692085

約数列:

[1, 7, 11, 77, 113, 791, 1243, 2087, 8701, 14609, 22957, 160699, 235831, 1650817, 2594141, 18158987]

約数ペア:

[(1, 18158987), (7, 2594141), (11, 1650817), (77, 235831), (113, 160699), (791, 22957), (1243, 14609), (2087, 8701)]