138840377

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1\times {\mathrm{971}}^1$

素因数の和:1648

約数の個数: 16

約数和(自身を含む): 158723712

約数和(自身を除く): 19883335

約数列:

[1, 13, 17, 221, 647, 971, 8411, 10999, 12623, 16507, 142987, 214591, 628237, 8167081, 10680029, 138840377]

約数ペア:

[(1, 138840377), (13, 10680029), (17, 8167081), (221, 628237), (647, 214591), (971, 142987), (8411, 16507), (10999, 12623)]