19997266473

素因数分解:

$3^4\times {\mathrm{4889}}^1\times {\mathrm{50497}}^1$

素因数の和:55398

約数の個数: 20

約数和(自身を含む): 29879161620

約数和(自身を除く): 9881895147

約数列:

[1, 3, 9, 27, 81, 4889, 14667, 44001, 50497, 132003, 151491, 396009, 454473, 1363419, 4090257, 246879833, 740639499, 2221918497, 6665755491, 19997266473]

約数ペア:

[(1, 19997266473), (3, 6665755491), (9, 2221918497), (27, 740639499), (81, 246879833), (4889, 4090257), (14667, 1363419), (44001, 454473), (50497, 396009), (132003, 151491)]