19571456

素因数分解:

$2^8\times {\mathrm{89}}^1\times {\mathrm{859}}^1$

素因数の和:964

約数の個数: 36

約数和(自身を含む): 39551400

約数和(自身を除く): 19979944

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 256, 356, 712, 859, 1424, 1718, 2848, 3436, 5696, 6872, 11392, 13744, 22784, 27488, 54976, 76451, 109952, 152902, 219904, 305804, 611608, 1223216, 2446432, 4892864, 9785728, 19571456]

約数ペア:

[(1, 19571456), (2, 9785728), (4, 4892864), (8, 2446432), (16, 1223216), (32, 611608), (64, 305804), (89, 219904), (128, 152902), (178, 109952), (256, 76451), (356, 54976), (712, 27488), (859, 22784), (1424, 13744), (1718, 11392), (2848, 6872), (3436, 5696)]