216909

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 391872

約数和(自身を除く): 174963

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 313, 693, 939, 2191, 2817, 3443, 6573, 10329, 19719, 24101, 30987, 72303, 216909]

約数ペア:

[(1, 216909), (3, 72303), (7, 30987), (9, 24101), (11, 19719), (21, 10329), (33, 6573), (63, 3443), (77, 2817), (99, 2191), (231, 939), (313, 693)]