20565558

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{87887}}^1$

素因数の和:87908

約数の個数: 24

約数和(自身を含む): 47986848

約数和(自身を除く): 27421290

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 87887, 175774, 263661, 527322, 790983, 1142531, 1581966, 2285062, 3427593, 6855186, 10282779, 20565558]

約数ペア:

[(1, 20565558), (2, 10282779), (3, 6855186), (6, 3427593), (9, 2285062), (13, 1581966), (18, 1142531), (26, 790983), (39, 527322), (78, 263661), (117, 175774), (234, 87887)]