21030250

素因数分解:

$2^1\times 5^3\times {\mathrm{84121}}^1$

素因数の和:84138

約数の個数: 16

約数和(自身を含む): 39369096

約数和(自身を除く): 18338846

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 84121, 168242, 420605, 841210, 2103025, 4206050, 10515125, 21030250]

約数ペア:

[(1, 21030250), (2, 10515125), (5, 4206050), (10, 2103025), (25, 841210), (50, 420605), (125, 168242), (250, 84121)]