21678200

素因数分解:

$2^3\times 5^2\times {\mathrm{107}}^1\times {\mathrm{1013}}^1$

素因数の和:1136

約数の個数: 48

約数和(自身を含む): 50923080

約数和(自身を除く): 29244880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 107, 200, 214, 428, 535, 856, 1013, 1070, 2026, 2140, 2675, 4052, 4280, 5065, 5350, 8104, 10130, 10700, 20260, 21400, 25325, 40520, 50650, 101300, 108391, 202600, 216782, 433564, 541955, 867128, 1083910, 2167820, 2709775, 4335640, 5419550, 10839100, 21678200]

約数ペア:

[(1, 21678200), (2, 10839100), (4, 5419550), (5, 4335640), (8, 2709775), (10, 2167820), (20, 1083910), (25, 867128), (40, 541955), (50, 433564), (100, 216782), (107, 202600), (200, 108391), (214, 101300), (428, 50650), (535, 40520), (856, 25325), (1013, 21400), (1070, 20260), (2026, 10700), (2140, 10130), (2675, 8104), (4052, 5350), (4280, 5065)]