390931191

素因数分解:

$3^4\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2083}}^1$

素因数の和:2433

約数の個数: 40

約数和(自身を含む): 669747584

約数和(自身を除く): 278816393

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 331, 567, 993, 2083, 2317, 2979, 6249, 6951, 8937, 14581, 18747, 20853, 26811, 43743, 56241, 62559, 131229, 168723, 187677, 393687, 689473, 1181061, 2068419, 4826311, 6205257, 14478933, 18615771, 43436799, 55847313, 130310397, 390931191]

約数ペア:

[(1, 390931191), (3, 130310397), (7, 55847313), (9, 43436799), (21, 18615771), (27, 14478933), (63, 6205257), (81, 4826311), (189, 2068419), (331, 1181061), (567, 689473), (993, 393687), (2083, 187677), (2317, 168723), (2979, 131229), (6249, 62559), (6951, 56241), (8937, 43743), (14581, 26811), (18747, 20853)]