21310557

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1699}}^1$

素因数の和:1852

約数の個数: 16

約数和(自身を含む): 29457600

約数和(自身を除く): 8147043

約数列:

[1, 3, 37, 111, 113, 339, 1699, 4181, 5097, 12543, 62863, 188589, 191987, 575961, 7103519, 21310557]

約数ペア:

[(1, 21310557), (3, 7103519), (37, 575961), (111, 191987), (113, 188589), (339, 62863), (1699, 12543), (4181, 5097)]