16891407

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6277}}^1$

素因数の和:6319

約数の個数: 24

約数和(自身を含む): 27422304

約数和(自身を除く): 10530897

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 6277, 18831, 56493, 81601, 144371, 244803, 433113, 734409, 1299339, 1876823, 5630469, 16891407]

約数ペア:

[(1, 16891407), (3, 5630469), (9, 1876823), (13, 1299339), (23, 734409), (39, 433113), (69, 244803), (117, 144371), (207, 81601), (299, 56493), (897, 18831), (2691, 6277)]