18117918

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1229}}^1$

素因数の和:1263

約数の個数: 80

約数和(自身を含む): 50006880

約数和(自身を除く): 31888962

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 81, 91, 117, 126, 162, 182, 189, 234, 273, 351, 378, 546, 567, 702, 819, 1053, 1134, 1229, 1638, 2106, 2457, 2458, 3687, 4914, 7371, 7374, 8603, 11061, 14742, 15977, 17206, 22122, 25809, 31954, 33183, 47931, 51618, 66366, 77427, 95862, 99549, 111839, 143793, 154854, 199098, 223678, 232281, 287586, 335517, 431379, 464562, 671034, 696843, 862758, 1006551, 1294137, 1393686, 2013102, 2588274, 3019653, 6039306, 9058959, 18117918]

約数ペア:

[(1, 18117918), (2, 9058959), (3, 6039306), (6, 3019653), (7, 2588274), (9, 2013102), (13, 1393686), (14, 1294137), (18, 1006551), (21, 862758), (26, 696843), (27, 671034), (39, 464562), (42, 431379), (54, 335517), (63, 287586), (78, 232281), (81, 223678), (91, 199098), (117, 154854), (126, 143793), (162, 111839), (182, 99549), (189, 95862), (234, 77427), (273, 66366), (351, 51618), (378, 47931), (546, 33183), (567, 31954), (702, 25809), (819, 22122), (1053, 17206), (1134, 15977), (1229, 14742), (1638, 11061), (2106, 8603), (2457, 7374), (2458, 7371), (3687, 4914)]