21604790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{761}}^1$

素因数の和:952

約数の個数: 32

約数和(自身を含む): 41477184

約数和(自身を除く): 19872394

約数列:

[1, 2, 5, 10, 17, 34, 85, 167, 170, 334, 761, 835, 1522, 1670, 2839, 3805, 5678, 7610, 12937, 14195, 25874, 28390, 64685, 127087, 129370, 254174, 635435, 1270870, 2160479, 4320958, 10802395, 21604790]

約数ペア:

[(1, 21604790), (2, 10802395), (5, 4320958), (10, 2160479), (17, 1270870), (34, 635435), (85, 254174), (167, 129370), (170, 127087), (334, 64685), (761, 28390), (835, 25874), (1522, 14195), (1670, 12937), (2839, 7610), (3805, 5678)]