21528485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9547}}^1$

素因数の和:9604

約数の個数: 16

約数和(自身を含む): 28873152

約数和(自身を除く): 7344667

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 9547, 47735, 105017, 391427, 525085, 1957135, 4305697, 21528485]

約数ペア:

[(1, 21528485), (5, 4305697), (11, 1957135), (41, 525085), (55, 391427), (205, 105017), (451, 47735), (2255, 9547)]