20187992178

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^1\times {\mathrm{5265517}}^1$

素因数の和:5265599

約数の個数: 32

約数和(自身を含む): 45494075520

約数和(自身を除く): 25306083342

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 142, 213, 426, 639, 1278, 1917, 3834, 5265517, 10531034, 15796551, 31593102, 47389653, 94779306, 142168959, 284337918, 373851707, 747703414, 1121555121, 2243110242, 3364665363, 6729330726, 10093996089, 20187992178]

約数ペア:

[(1, 20187992178), (2, 10093996089), (3, 6729330726), (6, 3364665363), (9, 2243110242), (18, 1121555121), (27, 747703414), (54, 373851707), (71, 284337918), (142, 142168959), (213, 94779306), (426, 47389653), (639, 31593102), (1278, 15796551), (1917, 10531034), (3834, 5265517)]