289210317

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1\times {\mathrm{709}}^1$

素因数の和:1033

約数の個数: 32

約数和(自身を含む): 431861760

約数和(自身を除く): 142651443

約数列:

[1, 3, 11, 33, 47, 141, 263, 517, 709, 789, 1551, 2127, 2893, 7799, 8679, 12361, 23397, 33323, 37083, 99969, 135971, 186467, 366553, 407913, 559401, 1099659, 2051137, 6153411, 8763949, 26291847, 96403439, 289210317]

約数ペア:

[(1, 289210317), (3, 96403439), (11, 26291847), (33, 8763949), (47, 6153411), (141, 2051137), (263, 1099659), (517, 559401), (709, 407913), (789, 366553), (1551, 186467), (2127, 135971), (2893, 99969), (7799, 37083), (8679, 33323), (12361, 23397)]