19936658

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:758

約数の個数: 32

約数和(自身を含む): 35831808

約数和(自身を除く): 15895150

約数列:

[1, 2, 7, 14, 31, 62, 71, 142, 217, 434, 497, 647, 994, 1294, 2201, 4402, 4529, 9058, 15407, 20057, 30814, 40114, 45937, 91874, 140399, 280798, 321559, 643118, 1424047, 2848094, 9968329, 19936658]

約数ペア:

[(1, 19936658), (2, 9968329), (7, 2848094), (14, 1424047), (31, 643118), (62, 321559), (71, 280798), (142, 140399), (217, 91874), (434, 45937), (497, 40114), (647, 30814), (994, 20057), (1294, 15407), (2201, 9058), (4402, 4529)]