21020769

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10111}}^1$

素因数の和:10138

約数の個数: 32

約数和(自身を含む): 38830080

約数和(自身を除く): 17809311

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 10111, 30333, 70777, 90999, 111221, 212331, 272997, 333663, 636993, 778547, 1000989, 1910979, 2335641, 3002967, 7006923, 21020769]

約数ペア:

[(1, 21020769), (3, 7006923), (7, 3002967), (9, 2335641), (11, 1910979), (21, 1000989), (27, 778547), (33, 636993), (63, 333663), (77, 272997), (99, 212331), (189, 111221), (231, 90999), (297, 70777), (693, 30333), (2079, 10111)]