20354607

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{857}}^1$

素因数の和:912

約数の個数: 48

約数和(自身を含む): 37477440

約数和(自身を除く): 17122833

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 609, 819, 857, 1131, 1827, 2571, 2639, 3393, 5999, 7713, 7917, 11141, 17997, 23751, 24853, 33423, 53991, 74559, 77987, 100269, 173971, 223677, 233961, 323089, 521913, 701883, 969267, 1565739, 2261623, 2907801, 6784869, 20354607]

約数ペア:

[(1, 20354607), (3, 6784869), (7, 2907801), (9, 2261623), (13, 1565739), (21, 969267), (29, 701883), (39, 521913), (63, 323089), (87, 233961), (91, 223677), (117, 173971), (203, 100269), (261, 77987), (273, 74559), (377, 53991), (609, 33423), (819, 24853), (857, 23751), (1131, 17997), (1827, 11141), (2571, 7917), (2639, 7713), (3393, 5999)]