20851558

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{1259}}^1$

素因数の和:1301

約数の個数: 36

約数和(自身を含む): 39429180

約数和(自身を除く): 18577622

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 169, 182, 338, 637, 1183, 1259, 1274, 2366, 2518, 8281, 8813, 16367, 16562, 17626, 32734, 61691, 114569, 123382, 212771, 229138, 425542, 801983, 1489397, 1603966, 2978794, 10425779, 20851558]

約数ペア:

[(1, 20851558), (2, 10425779), (7, 2978794), (13, 1603966), (14, 1489397), (26, 801983), (49, 425542), (91, 229138), (98, 212771), (169, 123382), (182, 114569), (338, 61691), (637, 32734), (1183, 17626), (1259, 16562), (1274, 16367), (2366, 8813), (2518, 8281)]