21931305

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5779}}^1$

素因数の和:5821

約数の個数: 32

約数和(自身を含む): 39951360

約数和(自身を除く): 18020055

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 5779, 17337, 28895, 63569, 86685, 132917, 190707, 317845, 398751, 664585, 953535, 1462087, 1993755, 4386261, 7310435, 21931305]

約数ペア:

[(1, 21931305), (3, 7310435), (5, 4386261), (11, 1993755), (15, 1462087), (23, 953535), (33, 664585), (55, 398751), (69, 317845), (115, 190707), (165, 132917), (253, 86685), (345, 63569), (759, 28895), (1265, 17337), (3795, 5779)]