21351033

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{773}}^1$

素因数の和:827

約数の個数: 40

約数和(自身を含む): 35963136

約数和(自身を除く): 14612103

約数列:

[1, 3, 9, 11, 27, 31, 33, 81, 93, 99, 279, 297, 341, 773, 837, 891, 1023, 2319, 2511, 3069, 6957, 8503, 9207, 20871, 23963, 25509, 27621, 62613, 71889, 76527, 215667, 229581, 263593, 647001, 688743, 790779, 1941003, 2372337, 7117011, 21351033]

約数ペア:

[(1, 21351033), (3, 7117011), (9, 2372337), (11, 1941003), (27, 790779), (31, 688743), (33, 647001), (81, 263593), (93, 229581), (99, 215667), (279, 76527), (297, 71889), (341, 62613), (773, 27621), (837, 25509), (891, 23963), (1023, 20871), (2319, 9207), (2511, 8503), (3069, 6957)]