18268833961

素因数分解:

$7^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1\times {\mathrm{641}}^1$

素因数の和:1161

約数の個数: 32

約数和(自身を含む): 21331081728

約数和(自身を除く): 3062247767

約数列:

[1, 7, 113, 137, 263, 641, 791, 959, 1841, 4487, 15481, 29719, 36031, 72433, 87817, 108367, 168583, 208033, 252217, 507031, 614719, 1180081, 4071503, 9923321, 19049879, 23095871, 28500521, 69463247, 133349153, 161671097, 2609833423, 18268833961]

約数ペア:

[(1, 18268833961), (7, 2609833423), (113, 161671097), (137, 133349153), (263, 69463247), (641, 28500521), (791, 23095871), (959, 19049879), (1841, 9923321), (4487, 4071503), (15481, 1180081), (29719, 614719), (36031, 507031), (72433, 252217), (87817, 208033), (108367, 168583)]