13221915

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17989}}^1$

素因数の和:18011

約数の個数: 24

約数和(自身を含む): 24610320

約数和(自身を除く): 11388405

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 17989, 53967, 89945, 125923, 269835, 377769, 629615, 881461, 1888845, 2644383, 4407305, 13221915]

約数ペア:

[(1, 13221915), (3, 4407305), (5, 2644383), (7, 1888845), (15, 881461), (21, 629615), (35, 377769), (49, 269835), (105, 125923), (147, 89945), (245, 53967), (735, 17989)]