21065065

素因数分解:

$5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{101}}^2$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 29672640

約数和(自身を除く): 8607575

約数列:

[1, 5, 7, 35, 59, 101, 295, 413, 505, 707, 2065, 3535, 5959, 10201, 29795, 41713, 51005, 71407, 208565, 357035, 601859, 3009295, 4213013, 21065065]

約数ペア:

[(1, 21065065), (5, 4213013), (7, 3009295), (35, 601859), (59, 357035), (101, 208565), (295, 71407), (413, 51005), (505, 41713), (707, 29795), (2065, 10201), (3535, 5959)]