21693357

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2311}}^1$

素因数の和:2473

約数の個数: 24

約数和(自身を含む): 36067200

約数和(自身を除く): 14373843

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 2311, 3129, 6933, 9387, 16177, 20799, 48531, 145593, 344339, 1033017, 2410373, 3099051, 7231119, 21693357]

約数ペア:

[(1, 21693357), (3, 7231119), (7, 3099051), (9, 2410373), (21, 1033017), (63, 344339), (149, 145593), (447, 48531), (1043, 20799), (1341, 16177), (2311, 9387), (3129, 6933)]