18813618

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 42282240

約数和(自身を除く): 23468622

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 109, 129, 218, 223, 258, 327, 387, 446, 654, 669, 774, 981, 1338, 1962, 2007, 4014, 4687, 9374, 9589, 14061, 19178, 24307, 28122, 28767, 42183, 48614, 57534, 72921, 84366, 86301, 145842, 172602, 218763, 437526, 1045201, 2090402, 3135603, 6271206, 9406809, 18813618]

約数ペア:

[(1, 18813618), (2, 9406809), (3, 6271206), (6, 3135603), (9, 2090402), (18, 1045201), (43, 437526), (86, 218763), (109, 172602), (129, 145842), (218, 86301), (223, 84366), (258, 72921), (327, 57534), (387, 48614), (446, 42183), (654, 28767), (669, 28122), (774, 24307), (981, 19178), (1338, 14061), (1962, 9589), (2007, 9374), (4014, 4687)]