19028905

素因数分解:

$5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{769}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 26860680

約数和(自身を除く): 7831775

約数列:

[1, 5, 7, 35, 49, 101, 245, 505, 707, 769, 3535, 3845, 4949, 5383, 24745, 26915, 37681, 77669, 188405, 388345, 543683, 2718415, 3805781, 19028905]

約数ペア:

[(1, 19028905), (5, 3805781), (7, 2718415), (35, 543683), (49, 388345), (101, 188405), (245, 77669), (505, 37681), (707, 26915), (769, 24745), (3535, 5383), (3845, 4949)]