26987792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{129749}}^1$

素因数の和:129770

約数の個数: 20

約数和(自身を含む): 56311500

約数和(自身を除く): 29323708

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 129749, 259498, 518996, 1037992, 1686737, 2075984, 3373474, 6746948, 13493896, 26987792]

約数ペア:

[(1, 26987792), (2, 13493896), (4, 6746948), (8, 3373474), (13, 2075984), (16, 1686737), (26, 1037992), (52, 518996), (104, 259498), (208, 129749)]