21393412

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{1597}}^1$

素因数の和:1815

約数の個数: 24

約数和(自身を含む): 39866904

約数和(自身を除く): 18473492

約数列:

[1, 2, 4, 17, 34, 68, 197, 394, 788, 1597, 3194, 3349, 6388, 6698, 13396, 27149, 54298, 108596, 314609, 629218, 1258436, 5348353, 10696706, 21393412]

約数ペア:

[(1, 21393412), (2, 10696706), (4, 5348353), (17, 1258436), (34, 629218), (68, 314609), (197, 108596), (394, 54298), (788, 27149), (1597, 13396), (3194, 6698), (3349, 6388)]