21061456

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7789}}^1$

素因数の和:7823

約数の個数: 30

約数和(自身を含む): 44192670

約数和(自身を除く): 23131214

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7789, 15578, 31156, 62312, 101257, 124624, 202514, 405028, 810056, 1316341, 1620112, 2632682, 5265364, 10530728, 21061456]

約数ペア:

[(1, 21061456), (2, 10530728), (4, 5265364), (8, 2632682), (13, 1620112), (16, 1316341), (26, 810056), (52, 405028), (104, 202514), (169, 124624), (208, 101257), (338, 62312), (676, 31156), (1352, 15578), (2704, 7789)]