20671994

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 36443520

約数和(自身を除く): 15771526

約数列:

[1, 2, 7, 14, 73, 113, 146, 179, 226, 358, 511, 791, 1022, 1253, 1582, 2506, 8249, 13067, 16498, 20227, 26134, 40454, 57743, 91469, 115486, 141589, 182938, 283178, 1476571, 2953142, 10335997, 20671994]

約数ペア:

[(1, 20671994), (2, 10335997), (7, 2953142), (14, 1476571), (73, 283178), (113, 182938), (146, 141589), (179, 115486), (226, 91469), (358, 57743), (511, 40454), (791, 26134), (1022, 20227), (1253, 16498), (1582, 13067), (2506, 8249)]