20149525

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{6661}}^1$

素因数の和:6693

約数の個数: 18

約数和(自身を含む): 27467426

約数和(自身を除く): 7317901

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 6661, 33305, 73271, 166525, 366355, 805981, 1831775, 4029905, 20149525]

約数ペア:

[(1, 20149525), (5, 4029905), (11, 1831775), (25, 805981), (55, 366355), (121, 166525), (275, 73271), (605, 33305), (3025, 6661)]