21121624

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{20789}}^1$

素因数の和:20922

約数の個数: 16

約数和(自身を含む): 39916800

約数和(自身を除く): 18795176

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 20789, 41578, 83156, 166312, 2640203, 5280406, 10560812, 21121624]

約数ペア:

[(1, 21121624), (2, 10560812), (4, 5280406), (8, 2640203), (127, 166312), (254, 83156), (508, 41578), (1016, 20789)]