21569075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1913}}^1$

素因数の和:1975

約数の個数: 24

約数和(自身を含む): 29904336

約数和(自身を除く): 8335261

約数列:

[1, 5, 11, 25, 41, 55, 205, 275, 451, 1025, 1913, 2255, 9565, 11275, 21043, 47825, 78433, 105215, 392165, 526075, 862763, 1960825, 4313815, 21569075]

約数ペア:

[(1, 21569075), (5, 4313815), (11, 1960825), (25, 862763), (41, 526075), (55, 392165), (205, 105215), (275, 78433), (451, 47825), (1025, 21043), (1913, 11275), (2255, 9565)]