20345751

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2767}}^1$

素因数の和:2835

約数の個数: 24

約数和(自身を含む): 31665920

約数和(自身を除く): 11320169

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 2767, 7353, 8301, 24903, 52573, 118981, 157719, 356943, 473157, 1070829, 2260639, 6781917, 20345751]

約数ペア:

[(1, 20345751), (3, 6781917), (9, 2260639), (19, 1070829), (43, 473157), (57, 356943), (129, 157719), (171, 118981), (387, 52573), (817, 24903), (2451, 8301), (2767, 7353)]