18935290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{15649}}^1$

素因数の和:15678

約数の個数: 24

約数和(自身を含む): 37466100

約数和(自身を除く): 18530810

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 15649, 31298, 78245, 156490, 172139, 344278, 860695, 1721390, 1893529, 3787058, 9467645, 18935290]

約数ペア:

[(1, 18935290), (2, 9467645), (5, 3787058), (10, 1893529), (11, 1721390), (22, 860695), (55, 344278), (110, 172139), (121, 156490), (242, 78245), (605, 31298), (1210, 15649)]