2100082100

素因数分解:

$2^2\times 5^2\times {\mathrm{21000821}}^1$

素因数の和:21000835

約数の個数: 18

約数和(自身を含む): 4557178374

約数和(自身を除く): 2457096274

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 21000821, 42001642, 84003284, 105004105, 210008210, 420016420, 525020525, 1050041050, 2100082100]

約数ペア:

[(1, 2100082100), (2, 1050041050), (4, 525020525), (5, 420016420), (10, 210008210), (20, 105004105), (25, 84003284), (50, 42001642), (100, 21000821)]