21473127

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{467}}^1$

素因数の和:620

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 13121433

約数列:

[1, 3, 9, 13, 27, 39, 117, 131, 351, 393, 467, 1179, 1401, 1703, 3537, 4203, 5109, 6071, 12609, 15327, 18213, 45981, 54639, 61177, 163917, 183531, 550593, 795301, 1651779, 2385903, 7157709, 21473127]

約数ペア:

[(1, 21473127), (3, 7157709), (9, 2385903), (13, 1651779), (27, 795301), (39, 550593), (117, 183531), (131, 163917), (351, 61177), (393, 54639), (467, 45981), (1179, 18213), (1401, 15327), (1703, 12609), (3537, 6071), (4203, 5109)]