18504514

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 32941440

約数和(自身を除く): 14436926

約数列:

[1, 2, 7, 14, 37, 74, 139, 257, 259, 278, 514, 518, 973, 1799, 1946, 3598, 5143, 9509, 10286, 19018, 35723, 36001, 66563, 71446, 72002, 133126, 250061, 500122, 1321751, 2643502, 9252257, 18504514]

約数ペア:

[(1, 18504514), (2, 9252257), (7, 2643502), (14, 1321751), (37, 500122), (74, 250061), (139, 133126), (257, 72002), (259, 71446), (278, 66563), (514, 36001), (518, 35723), (973, 19018), (1799, 10286), (1946, 9509), (3598, 5143)]