20503288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197147}}^1$

素因数の和:197166

約数の個数: 16

約数和(自身を含む): 41401080

約数和(自身を除く): 20897792

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197147, 394294, 788588, 1577176, 2562911, 5125822, 10251644, 20503288]

約数ペア:

[(1, 20503288), (2, 10251644), (4, 5125822), (8, 2562911), (13, 1577176), (26, 788588), (52, 394294), (104, 197147)]