20321672

素因数分解:

$2^3\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1103}}^1$

素因数の和:1170

約数の個数: 48

約数和(自身を含む): 45308160

約数和(自身を除く): 24986488

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 49, 56, 94, 98, 188, 196, 329, 376, 392, 658, 1103, 1316, 2206, 2303, 2632, 4412, 4606, 7721, 8824, 9212, 15442, 18424, 30884, 51841, 54047, 61768, 103682, 108094, 207364, 216188, 362887, 414728, 432376, 725774, 1451548, 2540209, 2903096, 5080418, 10160836, 20321672]

約数ペア:

[(1, 20321672), (2, 10160836), (4, 5080418), (7, 2903096), (8, 2540209), (14, 1451548), (28, 725774), (47, 432376), (49, 414728), (56, 362887), (94, 216188), (98, 207364), (188, 108094), (196, 103682), (329, 61768), (376, 54047), (392, 51841), (658, 30884), (1103, 18424), (1316, 15442), (2206, 9212), (2303, 8824), (2632, 7721), (4412, 4606)]