21070004

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{309853}}^1$

素因数の和:309874

約数の個数: 12

約数和(自身を含む): 39041604

約数和(自身を除く): 17971600

約数列:

[1, 2, 4, 17, 34, 68, 309853, 619706, 1239412, 5267501, 10535002, 21070004]

約数ペア:

[(1, 21070004), (2, 10535002), (4, 5267501), (17, 1239412), (34, 619706), (68, 309853)]