17981165

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{367}}^1$

素因数の和:652

約数の個数: 16

約数和(自身を含む): 22256640

約数和(自身を除く): 4275475

約数列:

[1, 5, 41, 205, 239, 367, 1195, 1835, 9799, 15047, 48995, 75235, 87713, 438565, 3596233, 17981165]

約数ペア:

[(1, 17981165), (5, 3596233), (41, 438565), (205, 87713), (239, 75235), (367, 48995), (1195, 15047), (1835, 9799)]