21713121

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 32285760

約数和(自身を除く): 10572639

約数列:

[1, 3, 9, 59, 103, 177, 309, 397, 531, 927, 1191, 3573, 6077, 18231, 23423, 40891, 54693, 70269, 122673, 210807, 368019, 2412569, 7237707, 21713121]

約数ペア:

[(1, 21713121), (3, 7237707), (9, 2412569), (59, 368019), (103, 210807), (177, 122673), (309, 70269), (397, 54693), (531, 40891), (927, 23423), (1191, 18231), (3573, 6077)]