661306386

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8478287}}^1$

素因数の和:8478305

約数の個数: 16

約数和(自身を含む): 1424352384

約数和(自身を除く): 763045998

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 8478287, 16956574, 25434861, 50869722, 110217731, 220435462, 330653193, 661306386]

約数ペア:

[(1, 661306386), (2, 330653193), (3, 220435462), (6, 110217731), (13, 50869722), (26, 25434861), (39, 16956574), (78, 8478287)]