12900965

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4787}}^1$

素因数の和:4817

約数の個数: 24

約数和(自身を含む): 19649952

約数和(自身を除く): 6748987

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 4787, 23935, 33509, 52657, 167545, 234563, 263285, 368599, 1172815, 1842995, 2580193, 12900965]

約数ペア:

[(1, 12900965), (5, 2580193), (7, 1842995), (11, 1172815), (35, 368599), (49, 263285), (55, 234563), (77, 167545), (245, 52657), (385, 33509), (539, 23935), (2695, 4787)]