20557502

素因数分解:

$2^1\times 7^1\times {\mathrm{739}}^1\times {\mathrm{1987}}^1$

素因数の和:2735

約数の個数: 16

約数和(自身を含む): 35306880

約数和(自身を除く): 14749378

約数列:

[1, 2, 7, 14, 739, 1478, 1987, 3974, 5173, 10346, 13909, 27818, 1468393, 2936786, 10278751, 20557502]

約数ペア:

[(1, 20557502), (2, 10278751), (7, 2936786), (14, 1468393), (739, 27818), (1478, 13909), (1987, 10346), (3974, 5173)]