81481778

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{253049}}^1$

素因数の和:253081

約数の個数: 16

約数和(自身を含む): 145756800

約数和(自身を除く): 64275022

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 253049, 506098, 1771343, 3542686, 5820127, 11640254, 40740889, 81481778]

約数ペア:

[(1, 81481778), (2, 40740889), (7, 11640254), (14, 5820127), (23, 3542686), (46, 1771343), (161, 506098), (322, 253049)]