81647447

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{1297}}^1$

素因数の和:1367

約数の個数: 24

約数和(自身を含む): 103362336

約数和(自身を除く): 21714889

約数列:

[1, 7, 17, 23, 119, 161, 391, 529, 1297, 2737, 3703, 8993, 9079, 22049, 29831, 62951, 154343, 208817, 507127, 686113, 3549889, 4802791, 11663921, 81647447]

約数ペア:

[(1, 81647447), (7, 11663921), (17, 4802791), (23, 3549889), (119, 686113), (161, 507127), (391, 208817), (529, 154343), (1297, 62951), (2737, 29831), (3703, 22049), (8993, 9079)]