19091425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1549}}^1$

素因数の和:1605

約数の個数: 24

約数和(自身を含む): 25947000

約数和(自身を除く): 6855575

約数列:

[1, 5, 17, 25, 29, 85, 145, 425, 493, 725, 1549, 2465, 7745, 12325, 26333, 38725, 44921, 131665, 224605, 658325, 763657, 1123025, 3818285, 19091425]

約数ペア:

[(1, 19091425), (5, 3818285), (17, 1123025), (25, 763657), (29, 658325), (85, 224605), (145, 131665), (425, 44921), (493, 38725), (725, 26333), (1549, 12325), (2465, 7745)]