16978017

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 26818560

約数和(自身を除く): 9840543

約数列:

[1, 3, 7, 21, 59, 71, 177, 193, 213, 413, 497, 579, 1239, 1351, 1491, 4053, 4189, 11387, 12567, 13703, 29323, 34161, 41109, 79709, 87969, 95921, 239127, 287763, 808477, 2425431, 5659339, 16978017]

約数ペア:

[(1, 16978017), (3, 5659339), (7, 2425431), (21, 808477), (59, 287763), (71, 239127), (177, 95921), (193, 87969), (213, 79709), (413, 41109), (497, 34161), (579, 29323), (1239, 13703), (1351, 12567), (1491, 11387), (4053, 4189)]