21231415

素因数分解:

$5^1\times {\mathrm{23}}^3\times {\mathrm{349}}^1$

素因数の和:423

約数の個数: 16

約数和(自身を含む): 26712000

約数和(自身を除く): 5480585

約数列:

[1, 5, 23, 115, 349, 529, 1745, 2645, 8027, 12167, 40135, 60835, 184621, 923105, 4246283, 21231415]

約数ペア:

[(1, 21231415), (5, 4246283), (23, 923105), (115, 184621), (349, 60835), (529, 40135), (1745, 12167), (2645, 8027)]