20666008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3217}}^1$

素因数の和:3307

約数の個数: 32

約数和(自身を含む): 42863760

約数和(自身を除く): 22197752

約数列:

[1, 2, 4, 8, 11, 22, 44, 73, 88, 146, 292, 584, 803, 1606, 3212, 3217, 6424, 6434, 12868, 25736, 35387, 70774, 141548, 234841, 283096, 469682, 939364, 1878728, 2583251, 5166502, 10333004, 20666008]

約数ペア:

[(1, 20666008), (2, 10333004), (4, 5166502), (8, 2583251), (11, 1878728), (22, 939364), (44, 469682), (73, 283096), (88, 234841), (146, 141548), (292, 70774), (584, 35387), (803, 25736), (1606, 12868), (3212, 6434), (3217, 6424)]