18263588

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 38513664

約数和(自身を除く): 20250076

約数列:

[1, 2, 4, 7, 14, 28, 31, 53, 62, 106, 124, 212, 217, 371, 397, 434, 742, 794, 868, 1484, 1588, 1643, 2779, 3286, 5558, 6572, 11116, 11501, 12307, 21041, 23002, 24614, 42082, 46004, 49228, 84164, 86149, 147287, 172298, 294574, 344596, 589148, 652271, 1304542, 2609084, 4565897, 9131794, 18263588]

約数ペア:

[(1, 18263588), (2, 9131794), (4, 4565897), (7, 2609084), (14, 1304542), (28, 652271), (31, 589148), (53, 344596), (62, 294574), (106, 172298), (124, 147287), (212, 86149), (217, 84164), (371, 49228), (397, 46004), (434, 42082), (742, 24614), (794, 23002), (868, 21041), (1484, 12307), (1588, 11501), (1643, 11116), (2779, 6572), (3286, 5558)]