13220445

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17987}}^1$

素因数の和:18009

約数の個数: 24

約数和(自身を含む): 24607584

約数和(自身を除く): 11387139

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 17987, 53961, 89935, 125909, 269805, 377727, 629545, 881363, 1888635, 2644089, 4406815, 13220445]

約数ペア:

[(1, 13220445), (3, 4406815), (5, 2644089), (7, 1888635), (15, 881363), (21, 629545), (35, 377727), (49, 269805), (105, 125909), (147, 89935), (245, 53961), (735, 17987)]