20780994

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{9187}}^1$

素因数の和:9234

約数の個数: 32

約数和(自身を含む): 46307520

約数和(自身を除く): 25526526

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 78, 87, 174, 377, 754, 1131, 2262, 9187, 18374, 27561, 55122, 119431, 238862, 266423, 358293, 532846, 716586, 799269, 1598538, 3463499, 6926998, 10390497, 20780994]

約数ペア:

[(1, 20780994), (2, 10390497), (3, 6926998), (6, 3463499), (13, 1598538), (26, 799269), (29, 716586), (39, 532846), (58, 358293), (78, 266423), (87, 238862), (174, 119431), (377, 55122), (754, 27561), (1131, 18374), (2262, 9187)]