21329396

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{347}}^1$

素因数の和:500

約数の個数: 36

約数和(自身を含む): 41470464

約数和(自身を除く): 20141068

約数列:

[1, 2, 4, 11, 22, 44, 121, 127, 242, 254, 347, 484, 508, 694, 1388, 1397, 2794, 3817, 5588, 7634, 15268, 15367, 30734, 41987, 44069, 61468, 83974, 88138, 167948, 176276, 484759, 969518, 1939036, 5332349, 10664698, 21329396]

約数ペア:

[(1, 21329396), (2, 10664698), (4, 5332349), (11, 1939036), (22, 969518), (44, 484759), (121, 176276), (127, 167948), (242, 88138), (254, 83974), (347, 61468), (484, 44069), (508, 41987), (694, 30734), (1388, 15367), (1397, 15268), (2794, 7634), (3817, 5588)]