21729123

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{811}}^1$

素因数の和:1059

約数の個数: 24

約数和(自身を含む): 33990320

約数和(自身を除く): 12261197

約数列:

[1, 3, 9, 13, 39, 117, 229, 687, 811, 2061, 2433, 2977, 7299, 8931, 10543, 26793, 31629, 94887, 185719, 557157, 1671471, 2414347, 7243041, 21729123]

約数ペア:

[(1, 21729123), (3, 7243041), (9, 2414347), (13, 1671471), (39, 557157), (117, 185719), (229, 94887), (687, 31629), (811, 26793), (2061, 10543), (2433, 8931), (2977, 7299)]