213216993

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{431}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 355829760

約数和(自身を除く): 142612767

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 263, 431, 627, 789, 1293, 1881, 2367, 2893, 3879, 4741, 4997, 8189, 8679, 14223, 14991, 24567, 26037, 42669, 44973, 54967, 73701, 90079, 113353, 164901, 270237, 340059, 494703, 810711, 1020177, 1246883, 2153707, 3740649, 6461121, 11221947, 19383363, 23690777, 71072331, 213216993]

約数ペア:

[(1, 213216993), (3, 71072331), (9, 23690777), (11, 19383363), (19, 11221947), (33, 6461121), (57, 3740649), (99, 2153707), (171, 1246883), (209, 1020177), (263, 810711), (431, 494703), (627, 340059), (789, 270237), (1293, 164901), (1881, 113353), (2367, 90079), (2893, 73701), (3879, 54967), (4741, 44973), (4997, 42669), (8189, 26037), (8679, 24567), (14223, 14991)]