638126493

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{557}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 890942976

約数和(自身を除く): 252816483

約数列:

[1, 3, 43, 83, 107, 129, 249, 321, 557, 1671, 3569, 4601, 8881, 10707, 13803, 23951, 26643, 46231, 59599, 71853, 138693, 178797, 381883, 1145649, 1987933, 2562757, 4946717, 5963799, 7688271, 14840151, 212708831, 638126493]

約数ペア:

[(1, 638126493), (3, 212708831), (43, 14840151), (83, 7688271), (107, 5963799), (129, 4946717), (249, 2562757), (321, 1987933), (557, 1145649), (1671, 381883), (3569, 178797), (4601, 138693), (8881, 71853), (10707, 59599), (13803, 46231), (23951, 26643)]