21130250

素因数分解:

$2^1\times 5^3\times {\mathrm{84521}}^1$

素因数の和:84538

約数の個数: 16

約数和(自身を含む): 39556296

約数和(自身を除く): 18426046

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 84521, 169042, 422605, 845210, 2113025, 4226050, 10565125, 21130250]

約数ペア:

[(1, 21130250), (2, 10565125), (5, 4226050), (10, 2113025), (25, 845210), (50, 422605), (125, 169042), (250, 84521)]