21112767

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5821}}^1$

素因数の和:5871

約数の個数: 24

約数和(自身を含む): 33907328

約数和(自身を除く): 12794561

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 5821, 17463, 52389, 75673, 180451, 227019, 541353, 681057, 1624059, 2345863, 7037589, 21112767]

約数ペア:

[(1, 21112767), (3, 7037589), (9, 2345863), (13, 1624059), (31, 681057), (39, 541353), (93, 227019), (117, 180451), (279, 75673), (403, 52389), (1209, 17463), (3627, 5821)]