21162836

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{193}}^1\times {\mathrm{347}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 37806720

約数和(自身を除く): 16643884

約数列:

[1, 2, 4, 79, 158, 193, 316, 347, 386, 694, 772, 1388, 15247, 27413, 30494, 54826, 60988, 66971, 109652, 133942, 267884, 5290709, 10581418, 21162836]

約数ペア:

[(1, 21162836), (2, 10581418), (4, 5290709), (79, 267884), (158, 133942), (193, 109652), (316, 66971), (347, 60988), (386, 54826), (694, 30494), (772, 27413), (1388, 15247)]