18426856

素因数分解:

$2^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1171}}^1$

素因数の和:1465

約数の個数: 32

約数和(自身を含む): 39660480

約数和(自身を除く): 21233624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 281, 562, 1124, 1171, 1967, 2248, 2342, 3934, 4684, 7868, 8197, 9368, 15736, 16394, 32788, 65576, 329051, 658102, 1316204, 2303357, 2632408, 4606714, 9213428, 18426856]

約数ペア:

[(1, 18426856), (2, 9213428), (4, 4606714), (7, 2632408), (8, 2303357), (14, 1316204), (28, 658102), (56, 329051), (281, 65576), (562, 32788), (1124, 16394), (1171, 15736), (1967, 9368), (2248, 8197), (2342, 7868), (3934, 4684)]