21753423

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5531}}^1$

素因数の和:5579

約数の個数: 24

約数和(自身を含む): 34519680

約数和(自身を除く): 12766257

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 5531, 16593, 49779, 105089, 127213, 315267, 381639, 945801, 1144917, 2417047, 7251141, 21753423]

約数ペア:

[(1, 21753423), (3, 7251141), (9, 2417047), (19, 1144917), (23, 945801), (57, 381639), (69, 315267), (171, 127213), (207, 105089), (437, 49779), (1311, 16593), (3933, 5531)]