20857589181

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1800707}}^1$

素因数の和:1800743

約数の個数: 40

約数和(自身を含む): 36604792224

約数和(自身を除く): 15747203043

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 297, 351, 429, 891, 1053, 1287, 3861, 11583, 1800707, 5402121, 16206363, 19807777, 23409191, 48619089, 59423331, 70227573, 145857267, 178269993, 210682719, 257501101, 534809979, 632048157, 772503303, 1604429937, 1896144471, 2317509909, 6952529727, 20857589181]

約数ペア:

[(1, 20857589181), (3, 6952529727), (9, 2317509909), (11, 1896144471), (13, 1604429937), (27, 772503303), (33, 632048157), (39, 534809979), (81, 257501101), (99, 210682719), (117, 178269993), (143, 145857267), (297, 70227573), (351, 59423331), (429, 48619089), (891, 23409191), (1053, 19807777), (1287, 16206363), (3861, 5402121), (11583, 1800707)]