21360140

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10369}}^1$

素因数の和:10481

約数の個数: 24

約数和(自身を含む): 45296160

約数和(自身を除く): 23936020

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 10369, 20738, 41476, 51845, 103690, 207380, 1068007, 2136014, 4272028, 5340035, 10680070, 21360140]

約数ペア:

[(1, 21360140), (2, 10680070), (4, 5340035), (5, 4272028), (10, 2136014), (20, 1068007), (103, 207380), (206, 103690), (412, 51845), (515, 41476), (1030, 20738), (2060, 10369)]