21086127

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{631}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 31549440

約数和(自身を除く): 10463313

約数列:

[1, 3, 9, 47, 79, 141, 237, 423, 631, 711, 1893, 3713, 5679, 11139, 29657, 33417, 49849, 88971, 149547, 266913, 448641, 2342903, 7028709, 21086127]

約数ペア:

[(1, 21086127), (3, 7028709), (9, 2342903), (47, 448641), (79, 266913), (141, 149547), (237, 88971), (423, 49849), (631, 33417), (711, 29657), (1893, 11139), (3713, 5679)]