21765747

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{5323}}^1$

素因数の和:5402

約数の個数: 16

約数和(自身を含む): 30666240

約数和(自身を除く): 8900493

約数列:

[1, 3, 29, 47, 87, 141, 1363, 4089, 5323, 15969, 154367, 250181, 463101, 750543, 7255249, 21765747]

約数ペア:

[(1, 21765747), (3, 7255249), (29, 750543), (47, 463101), (87, 250181), (141, 154367), (1363, 15969), (4089, 5323)]