21911127

素因数分解:

$3^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{2753}}^1$

素因数の和:3142

約数の個数: 16

約数和(自身を含む): 33488640

約数和(自身を除く): 11577513

約数列:

[1, 3, 7, 21, 379, 1137, 2653, 2753, 7959, 8259, 19271, 57813, 1043387, 3130161, 7303709, 21911127]

約数ペア:

[(1, 21911127), (3, 7303709), (7, 3130161), (21, 1043387), (379, 57813), (1137, 19271), (2653, 8259), (2753, 7959)]