21517036

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2903}}^1$

素因数の和:3033

約数の個数: 24

約数和(自身を含む): 40249440

約数和(自身を除く): 18732404

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 2903, 3706, 5806, 7412, 11612, 49351, 98702, 197404, 316427, 632854, 1265708, 5379259, 10758518, 21517036]

約数ペア:

[(1, 21517036), (2, 10758518), (4, 5379259), (17, 1265708), (34, 632854), (68, 316427), (109, 197404), (218, 98702), (436, 49351), (1853, 11612), (2903, 7412), (3706, 5806)]