21797060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64109}}^1$

素因数の和:64135

約数の個数: 24

約数和(自身を含む): 48467160

約数和(自身を除く): 26670100

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 64109, 128218, 256436, 320545, 641090, 1089853, 1282180, 2179706, 4359412, 5449265, 10898530, 21797060]

約数ペア:

[(1, 21797060), (2, 10898530), (4, 5449265), (5, 4359412), (10, 2179706), (17, 1282180), (20, 1089853), (34, 641090), (68, 320545), (85, 256436), (170, 128218), (340, 64109)]