21506366

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{347}}^1$

素因数の和:608

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 17580994

約数列:

[1, 2, 7, 14, 19, 38, 133, 233, 266, 347, 466, 694, 1631, 2429, 3262, 4427, 4858, 6593, 8854, 13186, 30989, 46151, 61978, 80851, 92302, 161702, 565957, 1131914, 1536169, 3072338, 10753183, 21506366]

約数ペア:

[(1, 21506366), (2, 10753183), (7, 3072338), (14, 1536169), (19, 1131914), (38, 565957), (133, 161702), (233, 92302), (266, 80851), (347, 61978), (466, 46151), (694, 30989), (1631, 13186), (2429, 8854), (3262, 6593), (4427, 4858)]