240021387

素因数分解:

$3^4\times {\mathrm{443}}^1\times {\mathrm{6689}}^1$

素因数の和:7144

約数の個数: 20

約数和(自身を含む): 359413560

約数和(自身を除く): 119392173

約数列:

[1, 3, 9, 27, 81, 443, 1329, 3987, 6689, 11961, 20067, 35883, 60201, 180603, 541809, 2963227, 8889681, 26669043, 80007129, 240021387]

約数ペア:

[(1, 240021387), (3, 80007129), (9, 26669043), (27, 8889681), (81, 2963227), (443, 541809), (1329, 180603), (3987, 60201), (6689, 35883), (11961, 20067)]