19962008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11939}}^1$

素因数の和:11975

約数の個数: 32

約数和(自身を含む): 42984000

約数和(自身を除く): 23021992

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 11939, 23878, 47756, 95512, 131329, 226841, 262658, 453682, 525316, 907364, 1050632, 1814728, 2495251, 4990502, 9981004, 19962008]

約数ペア:

[(1, 19962008), (2, 9981004), (4, 4990502), (8, 2495251), (11, 1814728), (19, 1050632), (22, 907364), (38, 525316), (44, 453682), (76, 262658), (88, 226841), (152, 131329), (209, 95512), (418, 47756), (836, 23878), (1672, 11939)]