19691854

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{421}}^1$

素因数の和:700

約数の個数: 32

約数和(自身を含む): 36582336

約数和(自身を除く): 16890482

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 257, 421, 514, 842, 1799, 2947, 3341, 3598, 5473, 5894, 6682, 10946, 23387, 38311, 46774, 76622, 108197, 216394, 757379, 1406561, 1514758, 2813122, 9845927, 19691854]

約数ペア:

[(1, 19691854), (2, 9845927), (7, 2813122), (13, 1514758), (14, 1406561), (26, 757379), (91, 216394), (182, 108197), (257, 76622), (421, 46774), (514, 38311), (842, 23387), (1799, 10946), (2947, 6682), (3341, 5894), (3598, 5473)]