21222831

素因数分解:

$3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{2447}}^1$

素因数の和:2523

約数の個数: 24

約数和(自身を含む): 33488640

約数和(自身を除く): 12265809

約数列:

[1, 3, 7, 21, 49, 59, 147, 177, 413, 1239, 2447, 2891, 7341, 8673, 17129, 51387, 119903, 144373, 359709, 433119, 1010611, 3031833, 7074277, 21222831]

約数ペア:

[(1, 21222831), (3, 7074277), (7, 3031833), (21, 1010611), (49, 433119), (59, 359709), (147, 144373), (177, 119903), (413, 51387), (1239, 17129), (2447, 8673), (2891, 7341)]