17642005

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{421}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 23319720

約数和(自身を除く): 5677715

約数列:

[1, 5, 17, 29, 85, 145, 289, 421, 493, 1445, 2105, 2465, 7157, 8381, 12209, 35785, 41905, 61045, 121669, 207553, 608345, 1037765, 3528401, 17642005]

約数ペア:

[(1, 17642005), (5, 3528401), (17, 1037765), (29, 608345), (85, 207553), (145, 121669), (289, 61045), (421, 41905), (493, 35785), (1445, 12209), (2105, 8381), (2465, 7157)]