20869336

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{887}}^1$

素因数の和:1083

約数の個数: 32

約数和(自身を含む): 41718240

約数和(自身を除く): 20848904

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 173, 346, 692, 887, 1384, 1774, 2941, 3548, 5882, 7096, 11764, 15079, 23528, 30158, 60316, 120632, 153451, 306902, 613804, 1227608, 2608667, 5217334, 10434668, 20869336]

約数ペア:

[(1, 20869336), (2, 10434668), (4, 5217334), (8, 2608667), (17, 1227608), (34, 613804), (68, 306902), (136, 153451), (173, 120632), (346, 60316), (692, 30158), (887, 23528), (1384, 15079), (1774, 11764), (2941, 7096), (3548, 5882)]