18020268

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1663}}^1$

素因数の和:1723

約数の個数: 72

約数和(自身を含む): 53301248

約数和(自身を除く): 35280980

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 63, 84, 86, 126, 129, 172, 252, 258, 301, 387, 516, 602, 774, 903, 1204, 1548, 1663, 1806, 2709, 3326, 3612, 4989, 5418, 6652, 9978, 10836, 11641, 14967, 19956, 23282, 29934, 34923, 46564, 59868, 69846, 71509, 104769, 139692, 143018, 209538, 214527, 286036, 419076, 429054, 500563, 643581, 858108, 1001126, 1287162, 1501689, 2002252, 2574324, 3003378, 4505067, 6006756, 9010134, 18020268]

約数ペア:

[(1, 18020268), (2, 9010134), (3, 6006756), (4, 4505067), (6, 3003378), (7, 2574324), (9, 2002252), (12, 1501689), (14, 1287162), (18, 1001126), (21, 858108), (28, 643581), (36, 500563), (42, 429054), (43, 419076), (63, 286036), (84, 214527), (86, 209538), (126, 143018), (129, 139692), (172, 104769), (252, 71509), (258, 69846), (301, 59868), (387, 46564), (516, 34923), (602, 29934), (774, 23282), (903, 19956), (1204, 14967), (1548, 11641), (1663, 10836), (1806, 9978), (2709, 6652), (3326, 5418), (3612, 4989)]