81209619

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{2633}}^1$

素因数の和:2811

約数の個数: 24

約数和(自身を含む): 123271200

約数和(自身を除く): 42061581

約数列:

[1, 3, 9, 23, 69, 149, 207, 447, 1341, 2633, 3427, 7899, 10281, 23697, 30843, 60559, 181677, 392317, 545031, 1176951, 3530853, 9023291, 27069873, 81209619]

約数ペア:

[(1, 81209619), (3, 27069873), (9, 9023291), (23, 3530853), (69, 1176951), (149, 545031), (207, 392317), (447, 181677), (1341, 60559), (2633, 30843), (3427, 23697), (7899, 10281)]