20809864

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1733}}^1$

素因数の和:1837

約数の個数: 32

約数和(自身を含む): 41616000

約数和(自身を除く): 20806136

約数列:

[1, 2, 4, 8, 19, 38, 76, 79, 152, 158, 316, 632, 1501, 1733, 3002, 3466, 6004, 6932, 12008, 13864, 32927, 65854, 131708, 136907, 263416, 273814, 547628, 1095256, 2601233, 5202466, 10404932, 20809864]

約数ペア:

[(1, 20809864), (2, 10404932), (4, 5202466), (8, 2601233), (19, 1095256), (38, 547628), (76, 273814), (79, 263416), (152, 136907), (158, 131708), (316, 65854), (632, 32927), (1501, 13864), (1733, 12008), (3002, 6932), (3466, 6004)]