81538506

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{647131}}^1$

素因数の和:647146

約数の個数: 24

約数和(自身を含む): 201905184

約数和(自身を除く): 120366678

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 647131, 1294262, 1941393, 3882786, 4529917, 5824179, 9059834, 11648358, 13589751, 27179502, 40769253, 81538506]

約数ペア:

[(1, 81538506), (2, 40769253), (3, 27179502), (6, 13589751), (7, 11648358), (9, 9059834), (14, 5824179), (18, 4529917), (21, 3882786), (42, 1941393), (63, 1294262), (126, 647131)]