21210400

素因数分解:

$2^5\times 5^2\times {\mathrm{26513}}^1$

素因数の和:26533

約数の個数: 36

約数和(自身を含む): 51781842

約数和(自身を除く): 30571442

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26513, 53026, 106052, 132565, 212104, 265130, 424208, 530260, 662825, 848416, 1060520, 1325650, 2121040, 2651300, 4242080, 5302600, 10605200, 21210400]

約数ペア:

[(1, 21210400), (2, 10605200), (4, 5302600), (5, 4242080), (8, 2651300), (10, 2121040), (16, 1325650), (20, 1060520), (25, 848416), (32, 662825), (40, 530260), (50, 424208), (80, 265130), (100, 212104), (160, 132565), (200, 106052), (400, 53026), (800, 26513)]