21676772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2999}}^1$

素因数の和:3155

約数の個数: 24

約数和(自身を含む): 41160000

約数和(自身を除く): 19483228

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2999, 3614, 5998, 7228, 11996, 38987, 77974, 155948, 416861, 833722, 1667444, 5419193, 10838386, 21676772]

約数ペア:

[(1, 21676772), (2, 10838386), (4, 5419193), (13, 1667444), (26, 833722), (52, 416861), (139, 155948), (278, 77974), (556, 38987), (1807, 11996), (2999, 7228), (3614, 5998)]