678351627

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{20873}}^1$

素因数の和:21059

約数の個数: 24

約数和(自身を含む): 1029004704

約数和(自身を除く): 350653077

約数列:

[1, 3, 9, 23, 69, 157, 207, 471, 1413, 3611, 10833, 20873, 32499, 62619, 187857, 480079, 1440237, 3277061, 4320711, 9831183, 29493549, 75372403, 226117209, 678351627]

約数ペア:

[(1, 678351627), (3, 226117209), (9, 75372403), (23, 29493549), (69, 9831183), (157, 4320711), (207, 3277061), (471, 1440237), (1413, 480079), (3611, 187857), (10833, 62619), (20873, 32499)]