18662992

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 37711872

約数和(自身を除く): 19048880

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 191, 197, 248, 382, 394, 496, 764, 788, 1528, 1576, 3056, 3152, 5921, 6107, 11842, 12214, 23684, 24428, 37627, 47368, 48856, 75254, 94736, 97712, 150508, 301016, 602032, 1166437, 2332874, 4665748, 9331496, 18662992]

約数ペア:

[(1, 18662992), (2, 9331496), (4, 4665748), (8, 2332874), (16, 1166437), (31, 602032), (62, 301016), (124, 150508), (191, 97712), (197, 94736), (248, 75254), (382, 48856), (394, 47368), (496, 37627), (764, 24428), (788, 23684), (1528, 12214), (1576, 11842), (3056, 6107), (3152, 5921)]