72173997

素因数分解:

$3^4\times 7^1\times {\mathrm{127291}}^1$

素因数の和:127310

約数の個数: 20

約数和(自身を含む): 123218656

約数和(自身を除く): 51044659

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 127291, 381873, 891037, 1145619, 2673111, 3436857, 8019333, 10310571, 24057999, 72173997]

約数ペア:

[(1, 72173997), (3, 24057999), (7, 10310571), (9, 8019333), (21, 3436857), (27, 2673111), (63, 1145619), (81, 891037), (189, 381873), (567, 127291)]