2173787

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 2859120

約数和(自身を除く): 685333

約数列:

[1, 7, 11, 37, 49, 77, 109, 259, 407, 539, 763, 1199, 1813, 2849, 4033, 5341, 8393, 19943, 28231, 44363, 58751, 197617, 310541, 2173787]

約数ペア:

[(1, 2173787), (7, 310541), (11, 197617), (37, 58751), (49, 44363), (77, 28231), (109, 19943), (259, 8393), (407, 5341), (539, 4033), (763, 2849), (1199, 1813)]