21902815

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{883}}^1$

素因数の和:951

約数の個数: 24

約数和(自身を含む): 29628144

約数和(自身を除く): 7725329

約数列:

[1, 5, 11, 41, 55, 121, 205, 451, 605, 883, 2255, 4415, 4961, 9713, 24805, 36203, 48565, 106843, 181015, 398233, 534215, 1991165, 4380563, 21902815]

約数ペア:

[(1, 21902815), (5, 4380563), (11, 1991165), (41, 534215), (55, 398233), (121, 181015), (205, 106843), (451, 48565), (605, 36203), (883, 24805), (2255, 9713), (4415, 4961)]