19970258

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1259}}^1$

素因数の和:1382

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 17769262

約数列:

[1, 2, 7, 11, 14, 22, 77, 103, 154, 206, 721, 1133, 1259, 1442, 2266, 2518, 7931, 8813, 13849, 15862, 17626, 27698, 96943, 129677, 193886, 259354, 907739, 1426447, 1815478, 2852894, 9985129, 19970258]

約数ペア:

[(1, 19970258), (2, 9985129), (7, 2852894), (11, 1815478), (14, 1426447), (22, 907739), (77, 259354), (103, 193886), (154, 129677), (206, 96943), (721, 27698), (1133, 17626), (1259, 15862), (1442, 13849), (2266, 8813), (2518, 7931)]