21643258

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1091}}^1$

素因数の和:1222

約数の個数: 32

約数和(自身を含む): 40360320

約数和(自身を除く): 18717062

約数列:

[1, 2, 7, 13, 14, 26, 91, 109, 182, 218, 763, 1091, 1417, 1526, 2182, 2834, 7637, 9919, 14183, 15274, 19838, 28366, 99281, 118919, 198562, 237838, 832433, 1545947, 1664866, 3091894, 10821629, 21643258]

約数ペア:

[(1, 21643258), (2, 10821629), (7, 3091894), (13, 1664866), (14, 1545947), (26, 832433), (91, 237838), (109, 198562), (182, 118919), (218, 99281), (763, 28366), (1091, 19838), (1417, 15274), (1526, 14183), (2182, 9919), (2834, 7637)]