20872808

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{8179}}^1$

素因数の和:8225

約数の個数: 32

約数和(自身を含む): 44172000

約数和(自身を除く): 23299192

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 88, 116, 232, 319, 638, 1276, 2552, 8179, 16358, 32716, 65432, 89969, 179938, 237191, 359876, 474382, 719752, 948764, 1897528, 2609101, 5218202, 10436404, 20872808]

約数ペア:

[(1, 20872808), (2, 10436404), (4, 5218202), (8, 2609101), (11, 1897528), (22, 948764), (29, 719752), (44, 474382), (58, 359876), (88, 237191), (116, 179938), (232, 89969), (319, 65432), (638, 32716), (1276, 16358), (2552, 8179)]