16891497

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^3$

素因数の和:112

約数の個数: 40

約数和(自身を含む): 29798912

約数和(自身を除く): 12907415

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 279, 567, 651, 837, 961, 1953, 2511, 2883, 5859, 6727, 8649, 17577, 20181, 25947, 29791, 60543, 77841, 89373, 181629, 208537, 268119, 544887, 625611, 804357, 1876833, 2413071, 5630499, 16891497]

約数ペア:

[(1, 16891497), (3, 5630499), (7, 2413071), (9, 1876833), (21, 804357), (27, 625611), (31, 544887), (63, 268119), (81, 208537), (93, 181629), (189, 89373), (217, 77841), (279, 60543), (567, 29791), (651, 25947), (837, 20181), (961, 17577), (1953, 8649), (2511, 6727), (2883, 5859)]