78609447

素因数分解:

$3^4\times 7^1\times {\mathrm{138641}}^1$

素因数の和:138660

約数の個数: 20

約数和(自身を含む): 134205456

約数和(自身を除く): 55596009

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 138641, 415923, 970487, 1247769, 2911461, 3743307, 8734383, 11229921, 26203149, 78609447]

約数ペア:

[(1, 78609447), (3, 26203149), (7, 11229921), (9, 8734383), (21, 3743307), (27, 2911461), (63, 1247769), (81, 970487), (189, 415923), (567, 138641)]