19940074

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:259

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 18363926

約数列:

[1, 2, 7, 11, 14, 22, 77, 79, 121, 149, 154, 158, 242, 298, 553, 847, 869, 1043, 1106, 1639, 1694, 1738, 2086, 3278, 6083, 9559, 11473, 11771, 12166, 18029, 19118, 22946, 23542, 36058, 66913, 82397, 126203, 129481, 133826, 164794, 252406, 258962, 906367, 1424291, 1812734, 2848582, 9970037, 19940074]

約数ペア:

[(1, 19940074), (2, 9970037), (7, 2848582), (11, 1812734), (14, 1424291), (22, 906367), (77, 258962), (79, 252406), (121, 164794), (149, 133826), (154, 129481), (158, 126203), (242, 82397), (298, 66913), (553, 36058), (847, 23542), (869, 22946), (1043, 19118), (1106, 18029), (1639, 12166), (1694, 11771), (1738, 11473), (2086, 9559), (3278, 6083)]