19938807

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18617}}^1$

素因数の和:18647

約数の個数: 24

約数和(自身を含む): 34852896

約数和(自身を除く): 14914089

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 18617, 55851, 130319, 167553, 316489, 390957, 949467, 1172871, 2215423, 2848401, 6646269, 19938807]

約数ペア:

[(1, 19938807), (3, 6646269), (7, 2848401), (9, 2215423), (17, 1172871), (21, 949467), (51, 390957), (63, 316489), (119, 167553), (153, 130319), (357, 55851), (1071, 18617)]