128940417

素因数分解:

$3^6\times {\mathrm{83}}^1\times {\mathrm{2131}}^1$

素因数の和:2232

約数の個数: 28

約数和(自身を含む): 195743184

約数和(自身を除く): 66802767

約数列:

[1, 3, 9, 27, 81, 83, 243, 249, 729, 747, 2131, 2241, 6393, 6723, 19179, 20169, 57537, 60507, 172611, 176873, 517833, 530619, 1553499, 1591857, 4775571, 14326713, 42980139, 128940417]

約数ペア:

[(1, 128940417), (3, 42980139), (9, 14326713), (27, 4775571), (81, 1591857), (83, 1553499), (243, 530619), (249, 517833), (729, 176873), (747, 172611), (2131, 60507), (2241, 57537), (6393, 20169), (6723, 19179)]