78281721

素因数分解:

$3^5\times 7^1\times {\mathrm{46021}}^1$

素因数の和:46043

約数の個数: 24

約数和(自身を含む): 134016064

約数和(自身を除く): 55734343

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 46021, 138063, 322147, 414189, 966441, 1242567, 2899323, 3727701, 8697969, 11183103, 26093907, 78281721]

約数ペア:

[(1, 78281721), (3, 26093907), (7, 11183103), (9, 8697969), (21, 3727701), (27, 2899323), (63, 1242567), (81, 966441), (189, 414189), (243, 322147), (567, 138063), (1701, 46021)]