18987336

素因数分解:

$2^3\times 3^2\times {\mathrm{307}}^1\times {\mathrm{859}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 51651600

約数和(自身を除く): 32664264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 307, 614, 859, 921, 1228, 1718, 1842, 2456, 2577, 2763, 3436, 3684, 5154, 5526, 6872, 7368, 7731, 10308, 11052, 15462, 20616, 22104, 30924, 61848, 263713, 527426, 791139, 1054852, 1582278, 2109704, 2373417, 3164556, 4746834, 6329112, 9493668, 18987336]

約数ペア:

[(1, 18987336), (2, 9493668), (3, 6329112), (4, 4746834), (6, 3164556), (8, 2373417), (9, 2109704), (12, 1582278), (18, 1054852), (24, 791139), (36, 527426), (72, 263713), (307, 61848), (614, 30924), (859, 22104), (921, 20616), (1228, 15462), (1718, 11052), (1842, 10308), (2456, 7731), (2577, 7368), (2763, 6872), (3436, 5526), (3684, 5154)]