21082809

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{8087}}^1$

素因数の和:8180

約数の個数: 16

約数和(自身を含む): 31057920

約数和(自身を除く): 9975111

約数列:

[1, 3, 11, 33, 79, 237, 869, 2607, 8087, 24261, 88957, 266871, 638873, 1916619, 7027603, 21082809]

約数ペア:

[(1, 21082809), (3, 7027603), (11, 1916619), (33, 638873), (79, 266871), (237, 88957), (869, 24261), (2607, 8087)]