220160781

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{1123}}^1$

素因数の和:1322

約数の個数: 32

約数和(自身を含む): 335041920

約数和(自身を除く): 114881139

約数列:

[1, 3, 9, 27, 53, 137, 159, 411, 477, 1123, 1233, 1431, 3369, 3699, 7261, 10107, 21783, 30321, 59519, 65349, 153851, 178557, 196047, 461553, 535671, 1384659, 1607013, 4153977, 8154103, 24462309, 73386927, 220160781]

約数ペア:

[(1, 220160781), (3, 73386927), (9, 24462309), (27, 8154103), (53, 4153977), (137, 1607013), (159, 1384659), (411, 535671), (477, 461553), (1123, 196047), (1233, 178557), (1431, 153851), (3369, 65349), (3699, 59519), (7261, 30321), (10107, 21783)]