21771256

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{16103}}^1$

素因数の和:16135

約数の個数: 24

約数和(自身を含む): 44205480

約数和(自身を除く): 22434224

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 16103, 32206, 64412, 128824, 209339, 418678, 837356, 1674712, 2721407, 5442814, 10885628, 21771256]

約数ペア:

[(1, 21771256), (2, 10885628), (4, 5442814), (8, 2721407), (13, 1674712), (26, 837356), (52, 418678), (104, 209339), (169, 128824), (338, 64412), (676, 32206), (1352, 16103)]