21593816

素因数分解:

$2^3\times {\mathrm{509}}^1\times {\mathrm{5303}}^1$

素因数の和:5818

約数の個数: 16

約数和(自身を含む): 40575600

約数和(自身を除く): 18981784

約数列:

[1, 2, 4, 8, 509, 1018, 2036, 4072, 5303, 10606, 21212, 42424, 2699227, 5398454, 10796908, 21593816]

約数ペア:

[(1, 21593816), (2, 10796908), (4, 5398454), (8, 2699227), (509, 42424), (1018, 21212), (2036, 10606), (4072, 5303)]