12787885

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{919}}^1$

素因数の和:969

約数の個数: 24

約数和(自身を含む): 17619840

約数和(自身を除く): 4831955

約数列:

[1, 5, 11, 23, 55, 115, 121, 253, 605, 919, 1265, 2783, 4595, 10109, 13915, 21137, 50545, 105685, 111199, 232507, 555995, 1162535, 2557577, 12787885]

約数ペア:

[(1, 12787885), (5, 2557577), (11, 1162535), (23, 555995), (55, 232507), (115, 111199), (121, 105685), (253, 50545), (605, 21137), (919, 13915), (1265, 10109), (2783, 4595)]