20988344

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6959}}^1$

素因数の和:7007

約数の個数: 32

約数和(自身を含む): 43848000

約数和(自身を除く): 22859656

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 3016, 6959, 13918, 27836, 55672, 90467, 180934, 201811, 361868, 403622, 723736, 807244, 1614488, 2623543, 5247086, 10494172, 20988344]

約数ペア:

[(1, 20988344), (2, 10494172), (4, 5247086), (8, 2623543), (13, 1614488), (26, 807244), (29, 723736), (52, 403622), (58, 361868), (104, 201811), (116, 180934), (232, 90467), (377, 55672), (754, 27836), (1508, 13918), (3016, 6959)]