20054866

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^3\times {\mathrm{157}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 34639920

約数和(自身を除く): 14585054

約数列:

[1, 2, 13, 17, 26, 34, 157, 221, 289, 314, 442, 578, 2041, 2669, 3757, 4082, 4913, 5338, 7514, 9826, 34697, 45373, 63869, 69394, 90746, 127738, 589849, 771341, 1179698, 1542682, 10027433, 20054866]

約数ペア:

[(1, 20054866), (2, 10027433), (13, 1542682), (17, 1179698), (26, 771341), (34, 589849), (157, 127738), (221, 90746), (289, 69394), (314, 63869), (442, 45373), (578, 34697), (2041, 9826), (2669, 7514), (3757, 5338), (4082, 4913)]