12878985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{709}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 23719680

約数和(自身を除く): 10840695

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 173, 519, 709, 865, 1211, 2127, 2595, 3545, 3633, 4963, 6055, 10635, 14889, 18165, 24815, 74445, 122657, 367971, 613285, 858599, 1839855, 2575797, 4292995, 12878985]

約数ペア:

[(1, 12878985), (3, 4292995), (5, 2575797), (7, 1839855), (15, 858599), (21, 613285), (35, 367971), (105, 122657), (173, 74445), (519, 24815), (709, 18165), (865, 14889), (1211, 10635), (2127, 6055), (2595, 4963), (3545, 3633)]