21336651

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2273}}^1$

素因数の和:2435

約数の個数: 24

約数和(自身を含む): 35474400

約数和(自身を除く): 14137749

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 2273, 3129, 6819, 9387, 15911, 20457, 47733, 143199, 338677, 1016031, 2370739, 3048093, 7112217, 21336651]

約数ペア:

[(1, 21336651), (3, 7112217), (7, 3048093), (9, 2370739), (21, 1016031), (63, 338677), (149, 143199), (447, 47733), (1043, 20457), (1341, 15911), (2273, 9387), (3129, 6819)]