18819135

素因数分解:

$3^7\times 5^1\times {\mathrm{1721}}^1$

素因数の和:1747

約数の個数: 32

約数和(自身を含む): 33888960

約数和(自身を除く): 15069825

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 1721, 2187, 3645, 5163, 8605, 10935, 15489, 25815, 46467, 77445, 139401, 232335, 418203, 697005, 1254609, 2091015, 3763827, 6273045, 18819135]

約数ペア:

[(1, 18819135), (3, 6273045), (5, 3763827), (9, 2091015), (15, 1254609), (27, 697005), (45, 418203), (81, 232335), (135, 139401), (243, 77445), (405, 46467), (729, 25815), (1215, 15489), (1721, 10935), (2187, 8605), (3645, 5163)]