21516651

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1039}}^1$

素因数の和:1120

約数の個数: 32

約数和(自身を含む): 34944000

約数和(自身を除く): 13427349

約数列:

[1, 3, 9, 13, 27, 39, 59, 117, 177, 351, 531, 767, 1039, 1593, 2301, 3117, 6903, 9351, 13507, 20709, 28053, 40521, 61301, 121563, 183903, 364689, 551709, 796913, 1655127, 2390739, 7172217, 21516651]

約数ペア:

[(1, 21516651), (3, 7172217), (9, 2390739), (13, 1655127), (27, 796913), (39, 551709), (59, 364689), (117, 183903), (177, 121563), (351, 61301), (531, 40521), (767, 28053), (1039, 20709), (1593, 13507), (2301, 9351), (3117, 6903)]