19409225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{433}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 26477472

約数和(自身を除く): 7068247

約数列:

[1, 5, 11, 25, 55, 163, 275, 433, 815, 1793, 2165, 4075, 4763, 8965, 10825, 23815, 44825, 70579, 119075, 352895, 776369, 1764475, 3881845, 19409225]

約数ペア:

[(1, 19409225), (5, 3881845), (11, 1764475), (25, 776369), (55, 352895), (163, 119075), (275, 70579), (433, 44825), (815, 23815), (1793, 10825), (2165, 8965), (4075, 4763)]