21366125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 29877120

約数和(自身を除く): 8510995

約数列:

[1, 5, 11, 25, 41, 55, 125, 205, 275, 379, 451, 1025, 1375, 1895, 2255, 4169, 5125, 9475, 11275, 15539, 20845, 47375, 56375, 77695, 104225, 170929, 388475, 521125, 854645, 1942375, 4273225, 21366125]

約数ペア:

[(1, 21366125), (5, 4273225), (11, 1942375), (25, 854645), (41, 521125), (55, 388475), (125, 170929), (205, 104225), (275, 77695), (379, 56375), (451, 47375), (1025, 20845), (1375, 15539), (1895, 11275), (2255, 9475), (4169, 5125)]