31915155

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{991}}^1$

素因数の和:1131

約数の個数: 32

約数和(自身を含む): 54282240

約数和(自身を除く): 22367085

約数列:

[1, 3, 5, 15, 19, 57, 95, 113, 285, 339, 565, 991, 1695, 2147, 2973, 4955, 6441, 10735, 14865, 18829, 32205, 56487, 94145, 111983, 282435, 335949, 559915, 1679745, 2127677, 6383031, 10638385, 31915155]

約数ペア:

[(1, 31915155), (3, 10638385), (5, 6383031), (15, 2127677), (19, 1679745), (57, 559915), (95, 335949), (113, 282435), (285, 111983), (339, 94145), (565, 56487), (991, 32205), (1695, 18829), (2147, 14865), (2973, 10735), (4955, 6441)]