21000453620

素因数分解:

$2^2\times 5^1\times {\mathrm{4831}}^1\times {\mathrm{217351}}^1$

素因数の和:222191

約数の個数: 24

約数和(自身を含む): 44110284288

約数和(自身を除く): 23109830668

約数列:

[1, 2, 4, 5, 10, 20, 4831, 9662, 19324, 24155, 48310, 96620, 217351, 434702, 869404, 1086755, 2173510, 4347020, 1050022681, 2100045362, 4200090724, 5250113405, 10500226810, 21000453620]

約数ペア:

[(1, 21000453620), (2, 10500226810), (4, 5250113405), (5, 4200090724), (10, 2100045362), (20, 1050022681), (4831, 4347020), (9662, 2173510), (19324, 1086755), (24155, 869404), (48310, 434702), (96620, 217351)]