21211024

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25013}}^1$

素因数の和:25074

約数の個数: 20

約数和(自身を含む): 41873436

約数和(自身を除く): 20662412

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25013, 50026, 100052, 200104, 400208, 1325689, 2651378, 5302756, 10605512, 21211024]

約数ペア:

[(1, 21211024), (2, 10605512), (4, 5302756), (8, 2651378), (16, 1325689), (53, 400208), (106, 200104), (212, 100052), (424, 50026), (848, 25013)]