28391356

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{11393}}^1$

素因数の和:11493

約数の個数: 24

約数和(自身を含む): 57425760

約数和(自身を除く): 29034404

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 11393, 22786, 45572, 79751, 159502, 319004, 1013977, 2027954, 4055908, 7097839, 14195678, 28391356]

約数ペア:

[(1, 28391356), (2, 14195678), (4, 7097839), (7, 4055908), (14, 2027954), (28, 1013977), (89, 319004), (178, 159502), (356, 79751), (623, 45572), (1246, 22786), (2492, 11393)]