81245997

素因数分解:

$3^4\times 7^1\times {\mathrm{143291}}^1$

素因数の和:143310

約数の個数: 20

約数和(自身を含む): 138706656

約数和(自身を除く): 57460659

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 143291, 429873, 1003037, 1289619, 3009111, 3868857, 9027333, 11606571, 27081999, 81245997]

約数ペア:

[(1, 81245997), (3, 27081999), (7, 11606571), (9, 9027333), (21, 3868857), (27, 3009111), (63, 1289619), (81, 1003037), (189, 429873), (567, 143291)]