21641187

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 31068400

約数和(自身を除く): 9427213

約数列:

[1, 3, 17, 51, 109, 229, 289, 327, 687, 867, 1853, 3893, 5559, 11679, 24961, 31501, 66181, 74883, 94503, 198543, 424337, 1273011, 7213729, 21641187]

約数ペア:

[(1, 21641187), (3, 7213729), (17, 1273011), (51, 424337), (109, 198543), (229, 94503), (289, 74883), (327, 66181), (687, 31501), (867, 24961), (1853, 11679), (3893, 5559)]