18782115

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1279}}^1$

素因数の和:1387

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 14395485

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1279, 1335, 2937, 3837, 4895, 6395, 14069, 14685, 19185, 42207, 70345, 113831, 211035, 341493, 569155, 1252141, 1707465, 3756423, 6260705, 18782115]

約数ペア:

[(1, 18782115), (3, 6260705), (5, 3756423), (11, 1707465), (15, 1252141), (33, 569155), (55, 341493), (89, 211035), (165, 113831), (267, 70345), (445, 42207), (979, 19185), (1279, 14685), (1335, 14069), (2937, 6395), (3837, 4895)]