20210649

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{1609}}^1$

素因数の和:1744

約数の個数: 16

約数和(自身を含む): 27820800

約数和(自身を除く): 7610151

約数列:

[1, 3, 53, 79, 159, 237, 1609, 4187, 4827, 12561, 85277, 127111, 255831, 381333, 6736883, 20210649]

約数ペア:

[(1, 20210649), (3, 6736883), (53, 381333), (79, 255831), (159, 127111), (237, 85277), (1609, 12561), (4187, 4827)]