1991141229

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{183397}}^1$

素因数の和:183465

約数の個数: 32

約数和(自身を含む): 3380391936

約数和(自身を除く): 1389250707

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 3619, 10857, 183397, 550191, 1283779, 2017367, 3851337, 6052101, 8619659, 14121569, 25858977, 42364707, 60337613, 94816249, 181012839, 284448747, 663713743, 1991141229]

約数ペア:

[(1, 1991141229), (3, 663713743), (7, 284448747), (11, 181012839), (21, 94816249), (33, 60337613), (47, 42364707), (77, 25858977), (141, 14121569), (231, 8619659), (329, 6052101), (517, 3851337), (987, 2017367), (1551, 1283779), (3619, 550191), (10857, 183397)]