21198111

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{2539}}^1$

素因数の和:2587

約数の個数: 24

約数和(自身を含む): 32430720

約数和(自身を除く): 11232609

約数列:

[1, 3, 11, 23, 33, 69, 121, 253, 363, 759, 2539, 2783, 7617, 8349, 27929, 58397, 83787, 175191, 307219, 642367, 921657, 1927101, 7066037, 21198111]

約数ペア:

[(1, 21198111), (3, 7066037), (11, 1927101), (23, 921657), (33, 642367), (69, 307219), (121, 175191), (253, 83787), (363, 58397), (759, 27929), (2539, 8349), (2783, 7617)]