20218856

素因数分解:

$2^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{2087}}^1$

素因数の和:2273

約数の個数: 32

約数和(自身を含む): 43597440

約数和(自身を除く): 23378584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 173, 346, 692, 1211, 1384, 2087, 2422, 4174, 4844, 8348, 9688, 14609, 16696, 29218, 58436, 116872, 361051, 722102, 1444204, 2527357, 2888408, 5054714, 10109428, 20218856]

約数ペア:

[(1, 20218856), (2, 10109428), (4, 5054714), (7, 2888408), (8, 2527357), (14, 1444204), (28, 722102), (56, 361051), (173, 116872), (346, 58436), (692, 29218), (1211, 16696), (1384, 14609), (2087, 9688), (2422, 8348), (4174, 4844)]