19471892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 39481344

約数和(自身を除く): 20009452

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 71, 92, 142, 253, 271, 284, 506, 542, 781, 1012, 1084, 1562, 1633, 2981, 3124, 3266, 5962, 6233, 6532, 11924, 12466, 17963, 19241, 24932, 35926, 38482, 68563, 71852, 76964, 137126, 211651, 274252, 423302, 442543, 846604, 885086, 1770172, 4867973, 9735946, 19471892]

約数ペア:

[(1, 19471892), (2, 9735946), (4, 4867973), (11, 1770172), (22, 885086), (23, 846604), (44, 442543), (46, 423302), (71, 274252), (92, 211651), (142, 137126), (253, 76964), (271, 71852), (284, 68563), (506, 38482), (542, 35926), (781, 24932), (1012, 19241), (1084, 17963), (1562, 12466), (1633, 11924), (2981, 6532), (3124, 6233), (3266, 5962)]