21083875

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{5441}}^1$

素因数の和:5487

約数の個数: 16

約数和(自身を含む): 27166464

約数和(自身を除く): 6082589

約数列:

[1, 5, 25, 31, 125, 155, 775, 3875, 5441, 27205, 136025, 168671, 680125, 843355, 4216775, 21083875]

約数ペア:

[(1, 21083875), (5, 4216775), (25, 843355), (31, 680125), (125, 168671), (155, 136025), (775, 27205), (3875, 5441)]