18894165

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 31124736

約数和(自身を除く): 12230571

約数列:

[1, 3, 5, 15, 71, 113, 157, 213, 339, 355, 471, 565, 785, 1065, 1695, 2355, 8023, 11147, 17741, 24069, 33441, 40115, 53223, 55735, 88705, 120345, 167205, 266115, 1259611, 3778833, 6298055, 18894165]

約数ペア:

[(1, 18894165), (3, 6298055), (5, 3778833), (15, 1259611), (71, 266115), (113, 167205), (157, 120345), (213, 88705), (339, 55735), (355, 53223), (471, 40115), (565, 33441), (785, 24069), (1065, 17741), (1695, 11147), (2355, 8023)]