21750352

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1973}}^1$

素因数の和:2047

約数の個数: 40

約数和(自身を含む): 46262664

約数和(自身を除く): 24512312

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 1973, 2756, 3946, 5512, 7892, 11024, 15784, 25649, 31568, 51298, 102596, 104569, 205192, 209138, 410384, 418276, 836552, 1359397, 1673104, 2718794, 5437588, 10875176, 21750352]

約数ペア:

[(1, 21750352), (2, 10875176), (4, 5437588), (8, 2718794), (13, 1673104), (16, 1359397), (26, 836552), (52, 418276), (53, 410384), (104, 209138), (106, 205192), (208, 104569), (212, 102596), (424, 51298), (689, 31568), (848, 25649), (1378, 15784), (1973, 11024), (2756, 7892), (3946, 5512)]