20987062

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{4637}}^1$

素因数の和:4743

約数の個数: 16

約数和(自身を含む): 32948352

約数和(自身を除く): 11961290

約数列:

[1, 2, 31, 62, 73, 146, 2263, 4526, 4637, 9274, 143747, 287494, 338501, 677002, 10493531, 20987062]

約数ペア:

[(1, 20987062), (2, 10493531), (31, 677002), (62, 338501), (73, 287494), (146, 143747), (2263, 9274), (4526, 4637)]