21890883

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{3607}}^1$

素因数の和:3651

約数の個数: 24

約数和(自身を含む): 35444992

約数和(自身を除く): 13554109

約数列:

[1, 3, 7, 17, 21, 51, 119, 289, 357, 867, 2023, 3607, 6069, 10821, 25249, 61319, 75747, 183957, 429233, 1042423, 1287699, 3127269, 7296961, 21890883]

約数ペア:

[(1, 21890883), (3, 7296961), (7, 3127269), (17, 1287699), (21, 1042423), (51, 429233), (119, 183957), (289, 75747), (357, 61319), (867, 25249), (2023, 10821), (3607, 6069)]