21494212

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:615

約数の個数: 24

約数和(自身を含む): 38367000

約数和(自身を除く): 16872788

約数列:

[1, 2, 4, 89, 173, 178, 346, 349, 356, 692, 698, 1396, 15397, 30794, 31061, 60377, 61588, 62122, 120754, 124244, 241508, 5373553, 10747106, 21494212]

約数ペア:

[(1, 21494212), (2, 10747106), (4, 5373553), (89, 241508), (173, 124244), (178, 120754), (346, 62122), (349, 61588), (356, 60377), (692, 31061), (698, 30794), (1396, 15397)]