19969484

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{269}}^1\times {\mathrm{277}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 35728560

約数和(自身を除く): 15759076

約数列:

[1, 2, 4, 67, 134, 268, 269, 277, 538, 554, 1076, 1108, 18023, 18559, 36046, 37118, 72092, 74236, 74513, 149026, 298052, 4992371, 9984742, 19969484]

約数ペア:

[(1, 19969484), (2, 9984742), (4, 4992371), (67, 298052), (134, 149026), (268, 74513), (269, 74236), (277, 72092), (538, 37118), (554, 36046), (1076, 18559), (1108, 18023)]