19687144

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 37778400

約数和(自身を除く): 18091256

約数列:

[1, 2, 4, 8, 107, 109, 211, 214, 218, 422, 428, 436, 844, 856, 872, 1688, 11663, 22577, 22999, 23326, 45154, 45998, 46652, 90308, 91996, 93304, 180616, 183992, 2460893, 4921786, 9843572, 19687144]

約数ペア:

[(1, 19687144), (2, 9843572), (4, 4921786), (8, 2460893), (107, 183992), (109, 180616), (211, 93304), (214, 91996), (218, 90308), (422, 46652), (428, 45998), (436, 45154), (844, 23326), (856, 22999), (872, 22577), (1688, 11663)]