21749913

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{499}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 32760000

約数和(自身を除く): 11010087

約数列:

[1, 3, 9, 29, 87, 167, 261, 499, 501, 1497, 1503, 4491, 4843, 14471, 14529, 43413, 43587, 83333, 130239, 249999, 749997, 2416657, 7249971, 21749913]

約数ペア:

[(1, 21749913), (3, 7249971), (9, 2416657), (29, 749997), (87, 249999), (167, 130239), (261, 83333), (499, 43587), (501, 43413), (1497, 14529), (1503, 14471), (4491, 4843)]