20420883

素因数分解:

$3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1049}}^1$

素因数の和:1168

約数の個数: 32

約数和(自身を含む): 34944000

約数和(自身を除く): 14523117

約数列:

[1, 3, 7, 9, 21, 27, 63, 103, 189, 309, 721, 927, 1049, 2163, 2781, 3147, 6489, 7343, 9441, 19467, 22029, 28323, 66087, 108047, 198261, 324141, 756329, 972423, 2268987, 2917269, 6806961, 20420883]

約数ペア:

[(1, 20420883), (3, 6806961), (7, 2917269), (9, 2268987), (21, 972423), (27, 756329), (63, 324141), (103, 198261), (189, 108047), (309, 66087), (721, 28323), (927, 22029), (1049, 19467), (2163, 9441), (2781, 7343), (3147, 6489)]