21874377

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{751}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 35614720

約数和(自身を除く): 13740343

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 511, 751, 1387, 1533, 2253, 4161, 5257, 9709, 14269, 15771, 29127, 42807, 54823, 99883, 164469, 299649, 383761, 1041637, 1151283, 3124911, 7291459, 21874377]

約数ペア:

[(1, 21874377), (3, 7291459), (7, 3124911), (19, 1151283), (21, 1041637), (57, 383761), (73, 299649), (133, 164469), (219, 99883), (399, 54823), (511, 42807), (751, 29127), (1387, 15771), (1533, 14269), (2253, 9709), (4161, 5257)]