78984747

素因数分解:

$3^3\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 119496960

約数和(自身を除く): 40512213

約数列:

[1, 3, 9, 27, 131, 137, 163, 393, 411, 489, 1179, 1233, 1467, 3537, 3699, 4401, 17947, 21353, 22331, 53841, 64059, 66993, 161523, 192177, 200979, 484569, 576531, 602937, 2925361, 8776083, 26328249, 78984747]

約数ペア:

[(1, 78984747), (3, 26328249), (9, 8776083), (27, 2925361), (131, 602937), (137, 576531), (163, 484569), (393, 200979), (411, 192177), (489, 161523), (1179, 66993), (1233, 64059), (1467, 53841), (3537, 22331), (3699, 21353), (4401, 17947)]