21486069

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7001}}^1$

素因数の和:7049

約数の個数: 24

約数和(自身を含む): 34953984

約数和(自身を除く): 13467915

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 279, 341, 1023, 3069, 7001, 21003, 63009, 77011, 217031, 231033, 651093, 693099, 1953279, 2387341, 7162023, 21486069]

約数ペア:

[(1, 21486069), (3, 7162023), (9, 2387341), (11, 1953279), (31, 693099), (33, 651093), (93, 231033), (99, 217031), (279, 77011), (341, 63009), (1023, 21003), (3069, 7001)]