20859531

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1237}}^1$

素因数の和:1331

約数の個数: 32

約数和(自身を含む): 35179008

約数和(自身を除く): 14319477

約数列:

[1, 3, 7, 11, 21, 33, 73, 77, 219, 231, 511, 803, 1237, 1533, 2409, 3711, 5621, 8659, 13607, 16863, 25977, 40821, 90301, 95249, 270903, 285747, 632107, 993311, 1896321, 2979933, 6953177, 20859531]

約数ペア:

[(1, 20859531), (3, 6953177), (7, 2979933), (11, 1896321), (21, 993311), (33, 632107), (73, 285747), (77, 270903), (219, 95249), (231, 90301), (511, 40821), (803, 25977), (1237, 16863), (1533, 13607), (2409, 8659), (3711, 5621)]