721442646

素因数分解:

$2^1\times 3^3\times {\mathrm{13360049}}^1$

素因数の和:13360060

約数の個数: 16

約数和(自身を含む): 1603206000

約数和(自身を除く): 881763354

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 13360049, 26720098, 40080147, 80160294, 120240441, 240480882, 360721323, 721442646]

約数ペア:

[(1, 721442646), (2, 360721323), (3, 240480882), (6, 120240441), (9, 80160294), (18, 40080147), (27, 26720098), (54, 13360049)]