18919317

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^2$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 28092096

約数和(自身を除く): 9172779

約数列:

[1, 3, 17, 23, 51, 69, 127, 381, 391, 1173, 2159, 2921, 6477, 8763, 16129, 48387, 49657, 148971, 274193, 370967, 822579, 1112901, 6306439, 18919317]

約数ペア:

[(1, 18919317), (3, 6306439), (17, 1112901), (23, 822579), (51, 370967), (69, 274193), (127, 148971), (381, 49657), (391, 48387), (1173, 16129), (2159, 8763), (2921, 6477)]