21294896

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10007}}^1$

素因数の和:10041

約数の個数: 40

約数和(自身を含む): 49639680

約数和(自身を除く): 28344784

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 10007, 20014, 40028, 70049, 80056, 140098, 160112, 190133, 280196, 380266, 560392, 760532, 1120784, 1330931, 1521064, 2661862, 3042128, 5323724, 10647448, 21294896]

約数ペア:

[(1, 21294896), (2, 10647448), (4, 5323724), (7, 3042128), (8, 2661862), (14, 1521064), (16, 1330931), (19, 1120784), (28, 760532), (38, 560392), (56, 380266), (76, 280196), (112, 190133), (133, 160112), (152, 140098), (266, 80056), (304, 70049), (532, 40028), (1064, 20014), (2128, 10007)]