18665612

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 39325440

約数和(自身を除く): 20659828

約数列:

[1, 2, 4, 7, 14, 28, 37, 43, 74, 86, 148, 172, 259, 301, 419, 518, 602, 838, 1036, 1204, 1591, 1676, 2933, 3182, 5866, 6364, 11137, 11732, 15503, 18017, 22274, 31006, 36034, 44548, 62012, 72068, 108521, 126119, 217042, 252238, 434084, 504476, 666629, 1333258, 2666516, 4666403, 9332806, 18665612]

約数ペア:

[(1, 18665612), (2, 9332806), (4, 4666403), (7, 2666516), (14, 1333258), (28, 666629), (37, 504476), (43, 434084), (74, 252238), (86, 217042), (148, 126119), (172, 108521), (259, 72068), (301, 62012), (419, 44548), (518, 36034), (602, 31006), (838, 22274), (1036, 18017), (1204, 15503), (1591, 11732), (1676, 11137), (2933, 6364), (3182, 5866)]