20942548

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11069}}^1$

素因数の和:11127

約数の個数: 24

約数和(自身を含む): 40914720

約数和(自身を除く): 19972172

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11069, 22138, 44276, 121759, 243518, 475967, 487036, 951934, 1903868, 5235637, 10471274, 20942548]

約数ペア:

[(1, 20942548), (2, 10471274), (4, 5235637), (11, 1903868), (22, 951934), (43, 487036), (44, 475967), (86, 243518), (172, 121759), (473, 44276), (946, 22138), (1892, 11069)]