20557402

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{1321}}^1$

素因数の和:1605

約数の個数: 16

約数和(自身を含む): 31981824

約数和(自身を除く): 11424422

約数列:

[1, 2, 31, 62, 251, 502, 1321, 2642, 7781, 15562, 40951, 81902, 331571, 663142, 10278701, 20557402]

約数ペア:

[(1, 20557402), (2, 10278701), (31, 663142), (62, 331571), (251, 81902), (502, 40951), (1321, 15562), (2642, 7781)]