19140748

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:654

約数の個数: 36

約数和(自身を含む): 37403856

約数和(自身を除く): 18263108

約数列:

[1, 2, 4, 11, 22, 44, 71, 121, 142, 242, 284, 484, 557, 781, 1114, 1562, 2228, 3124, 6127, 8591, 12254, 17182, 24508, 34364, 39547, 67397, 79094, 134794, 158188, 269588, 435017, 870034, 1740068, 4785187, 9570374, 19140748]

約数ペア:

[(1, 19140748), (2, 9570374), (4, 4785187), (11, 1740068), (22, 870034), (44, 435017), (71, 269588), (121, 158188), (142, 134794), (242, 79094), (284, 67397), (484, 39547), (557, 34364), (781, 24508), (1114, 17182), (1562, 12254), (2228, 8591), (3124, 6127)]