21000688300

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4883881}}^1$

素因数の和:4883938

約数の個数: 36

約数和(自身を含む): 46631305336

約数和(自身を除く): 25630617036

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 4883881, 9767762, 19535524, 24419405, 48838810, 97677620, 122097025, 210006883, 244194050, 420013766, 488388100, 840027532, 1050034415, 2100068830, 4200137660, 5250172075, 10500344150, 21000688300]

約数ペア:

[(1, 21000688300), (2, 10500344150), (4, 5250172075), (5, 4200137660), (10, 2100068830), (20, 1050034415), (25, 840027532), (43, 488388100), (50, 420013766), (86, 244194050), (100, 210006883), (172, 122097025), (215, 97677620), (430, 48838810), (860, 24419405), (1075, 19535524), (2150, 9767762), (4300, 4883881)]