20578936

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4129}}^1$

素因数の和:4231

約数の個数: 32

約数和(自身を含む): 44604000

約数和(自身を除く): 24025064

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4129, 4984, 8258, 16516, 28903, 33032, 57806, 115612, 231224, 367481, 734962, 1469924, 2572367, 2939848, 5144734, 10289468, 20578936]

約数ペア:

[(1, 20578936), (2, 10289468), (4, 5144734), (7, 2939848), (8, 2572367), (14, 1469924), (28, 734962), (56, 367481), (89, 231224), (178, 115612), (356, 57806), (623, 33032), (712, 28903), (1246, 16516), (2492, 8258), (4129, 4984)]