20778866

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{4591}}^1$

素因数の和:4697

約数の個数: 16

約数和(自身を含む): 32621568

約数和(自身を除く): 11842702

約数列:

[1, 2, 31, 62, 73, 146, 2263, 4526, 4591, 9182, 142321, 284642, 335143, 670286, 10389433, 20778866]

約数ペア:

[(1, 20778866), (2, 10389433), (31, 670286), (62, 335143), (73, 284642), (146, 142321), (2263, 9182), (4526, 4591)]