18906363

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 14639877

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 127, 139, 153, 357, 381, 417, 889, 973, 1071, 1143, 1251, 2159, 2363, 2667, 2919, 6477, 7089, 8001, 8757, 15113, 16541, 17653, 19431, 21267, 45339, 49623, 52959, 123571, 136017, 148869, 158877, 300101, 370713, 900303, 1112139, 2100707, 2700909, 6302121, 18906363]

約数ペア:

[(1, 18906363), (3, 6302121), (7, 2700909), (9, 2100707), (17, 1112139), (21, 900303), (51, 370713), (63, 300101), (119, 158877), (127, 148869), (139, 136017), (153, 123571), (357, 52959), (381, 49623), (417, 45339), (889, 21267), (973, 19431), (1071, 17653), (1143, 16541), (1251, 15113), (2159, 8757), (2363, 8001), (2667, 7089), (2919, 6477)]