397197218

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{857}}^1\times {\mathrm{21067}}^1$

素因数の和:21937

約数の個数: 16

約数和(自身を含む): 650748384

約数和(自身を除く): 253551166

約数列:

[1, 2, 11, 22, 857, 1714, 9427, 18854, 21067, 42134, 231737, 463474, 18054419, 36108838, 198598609, 397197218]

約数ペア:

[(1, 397197218), (2, 198598609), (11, 36108838), (22, 18054419), (857, 463474), (1714, 231737), (9427, 42134), (18854, 21067)]