20800402

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11171}}^1$

素因数の和:11206

約数の個数: 24

約数和(自身を含む): 38208240

約数和(自身を除く): 17407838

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 11171, 22342, 78197, 156394, 212249, 424498, 547379, 1094758, 1485743, 2971486, 10400201, 20800402]

約数ペア:

[(1, 20800402), (2, 10400201), (7, 2971486), (14, 1485743), (19, 1094758), (38, 547379), (49, 424498), (98, 212249), (133, 156394), (266, 78197), (931, 22342), (1862, 11171)]