21255262

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79907}}^1$

素因数の和:79935

約数の個数: 16

約数和(自身を含む): 38355840

約数和(自身を除く): 17100578

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79907, 159814, 559349, 1118698, 1518233, 3036466, 10627631, 21255262]

約数ペア:

[(1, 21255262), (2, 10627631), (7, 3036466), (14, 1518233), (19, 1118698), (38, 559349), (133, 159814), (266, 79907)]