12690788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{288427}}^1$

素因数の和:288442

約数の個数: 12

約数和(自身を含む): 24227952

約数和(自身を除く): 11537164

約数列:

[1, 2, 4, 11, 22, 44, 288427, 576854, 1153708, 3172697, 6345394, 12690788]

約数ペア:

[(1, 12690788), (2, 6345394), (4, 3172697), (11, 1153708), (22, 576854), (44, 288427)]