21276020

素因数分解:

$2^2\times 5^1\times {\mathrm{877}}^1\times {\mathrm{1213}}^1$

素因数の和:2099

約数の個数: 24

約数和(自身を含む): 44767464

約数和(自身を除く): 23491444

約数列:

[1, 2, 4, 5, 10, 20, 877, 1213, 1754, 2426, 3508, 4385, 4852, 6065, 8770, 12130, 17540, 24260, 1063801, 2127602, 4255204, 5319005, 10638010, 21276020]

約数ペア:

[(1, 21276020), (2, 10638010), (4, 5319005), (5, 4255204), (10, 2127602), (20, 1063801), (877, 24260), (1213, 17540), (1754, 12130), (2426, 8770), (3508, 6065), (4385, 4852)]