19515455

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:626

約数の個数: 16

約数和(自身を含む): 23983104

約数和(自身を除く): 4467649

約数列:

[1, 5, 73, 127, 365, 421, 635, 2105, 9271, 30733, 46355, 53467, 153665, 267335, 3903091, 19515455]

約数ペア:

[(1, 19515455), (5, 3903091), (73, 267335), (127, 153665), (365, 53467), (421, 46355), (635, 30733), (2105, 9271)]