19911045

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17239}}^1$

素因数の和:17265

約数の個数: 32

約数和(自身を含む): 39720960

約数和(自身を除く): 19809915

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17239, 51717, 86195, 120673, 189629, 258585, 362019, 568887, 603365, 948145, 1327403, 1810095, 2844435, 3982209, 6637015, 19911045]

約数ペア:

[(1, 19911045), (3, 6637015), (5, 3982209), (7, 2844435), (11, 1810095), (15, 1327403), (21, 948145), (33, 603365), (35, 568887), (55, 362019), (77, 258585), (105, 189629), (165, 120673), (231, 86195), (385, 51717), (1155, 17239)]