2100097700

素因数分解:

$2^2\times 5^2\times {\mathrm{21000977}}^1$

素因数の和:21000991

約数の個数: 18

約数和(自身を含む): 4557212226

約数和(自身を除く): 2457114526

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 21000977, 42001954, 84003908, 105004885, 210009770, 420019540, 525024425, 1050048850, 2100097700]

約数ペア:

[(1, 2100097700), (2, 1050048850), (4, 525024425), (5, 420019540), (10, 210009770), (20, 105004885), (25, 84003908), (50, 42001954), (100, 21000977)]