20994376

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6961}}^1$

素因数の和:7009

約数の個数: 32

約数和(自身を含む): 43860600

約数和(自身を除く): 22866224

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 3016, 6961, 13922, 27844, 55688, 90493, 180986, 201869, 361972, 403738, 723944, 807476, 1614952, 2624297, 5248594, 10497188, 20994376]

約数ペア:

[(1, 20994376), (2, 10497188), (4, 5248594), (8, 2624297), (13, 1614952), (26, 807476), (29, 723944), (52, 403738), (58, 361972), (104, 201869), (116, 180986), (232, 90493), (377, 55688), (754, 27844), (1508, 13922), (3016, 6961)]