21586820

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5651}}^1$

素因数の和:5851

約数の個数: 24

約数和(自身を含む): 45577728

約数和(自身を除く): 23990908

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5651, 11302, 22604, 28255, 56510, 113020, 1079341, 2158682, 4317364, 5396705, 10793410, 21586820]

約数ペア:

[(1, 21586820), (2, 10793410), (4, 5396705), (5, 4317364), (10, 2158682), (20, 1079341), (191, 113020), (382, 56510), (764, 28255), (955, 22604), (1910, 11302), (3820, 5651)]