19915986

素因数分解:

$2^1\times 3^1\times {\mathrm{677}}^1\times {\mathrm{4903}}^1$

素因数の和:5585

約数の個数: 16

約数和(自身を含む): 39898944

約数和(自身を除く): 19982958

約数列:

[1, 2, 3, 6, 677, 1354, 2031, 4062, 4903, 9806, 14709, 29418, 3319331, 6638662, 9957993, 19915986]

約数ペア:

[(1, 19915986), (2, 9957993), (3, 6638662), (6, 3319331), (677, 29418), (1354, 14709), (2031, 9806), (4062, 4903)]