668814729

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{111973}}^1$

素因数の和:112168

約数の個数: 16

約数和(自身を含む): 978204864

約数和(自身を除く): 309390135

約数列:

[1, 3, 11, 33, 181, 543, 1991, 5973, 111973, 335919, 1231703, 3695109, 20267113, 60801339, 222938243, 668814729]

約数ペア:

[(1, 668814729), (3, 222938243), (11, 60801339), (33, 20267113), (181, 3695109), (543, 1231703), (1991, 335919), (5973, 111973)]