21109664

素因数分解:

$2^5\times {\mathrm{317}}^1\times {\mathrm{2081}}^1$

素因数の和:2408

約数の個数: 24

約数和(自身を含む): 41710788

約数和(自身を除く): 20601124

約数列:

[1, 2, 4, 8, 16, 32, 317, 634, 1268, 2081, 2536, 4162, 5072, 8324, 10144, 16648, 33296, 66592, 659677, 1319354, 2638708, 5277416, 10554832, 21109664]

約数ペア:

[(1, 21109664), (2, 10554832), (4, 5277416), (8, 2638708), (16, 1319354), (32, 659677), (317, 66592), (634, 33296), (1268, 16648), (2081, 10144), (2536, 8324), (4162, 5072)]