81921942

素因数分解:

$2^1\times 3^4\times {\mathrm{505691}}^1$

素因数の和:505705

約数の個数: 20

約数和(自身を含む): 183566196

約数和(自身を除く): 101644254

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 505691, 1011382, 1517073, 3034146, 4551219, 9102438, 13653657, 27307314, 40960971, 81921942]

約数ペア:

[(1, 81921942), (2, 40960971), (3, 27307314), (6, 13653657), (9, 9102438), (18, 4551219), (27, 3034146), (54, 1517073), (81, 1011382), (162, 505691)]