20731657185

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1651267}}^1$

素因数の和:1651315

約数の個数: 40

約数和(自身を含む): 38362258176

約数和(自身を除く): 17630600991

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 279, 405, 465, 837, 1395, 2511, 4185, 12555, 1651267, 4953801, 8256335, 14861403, 24769005, 44584209, 51189277, 74307015, 133752627, 153567831, 222921045, 255946385, 460703493, 668763135, 767839155, 1382110479, 2303517465, 4146331437, 6910552395, 20731657185]

約数ペア:

[(1, 20731657185), (3, 6910552395), (5, 4146331437), (9, 2303517465), (15, 1382110479), (27, 767839155), (31, 668763135), (45, 460703493), (81, 255946385), (93, 222921045), (135, 153567831), (155, 133752627), (279, 74307015), (405, 51189277), (465, 44584209), (837, 24769005), (1395, 14861403), (2511, 8256335), (4185, 4953801), (12555, 1651267)]