21544788

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 51666944

約数和(自身を除く): 30122156

約数列:

[1, 2, 3, 4, 6, 12, 67, 127, 134, 201, 211, 254, 268, 381, 402, 422, 508, 633, 762, 804, 844, 1266, 1524, 2532, 8509, 14137, 17018, 25527, 26797, 28274, 34036, 42411, 51054, 53594, 56548, 80391, 84822, 102108, 107188, 160782, 169644, 321564, 1795399, 3590798, 5386197, 7181596, 10772394, 21544788]

約数ペア:

[(1, 21544788), (2, 10772394), (3, 7181596), (4, 5386197), (6, 3590798), (12, 1795399), (67, 321564), (127, 169644), (134, 160782), (201, 107188), (211, 102108), (254, 84822), (268, 80391), (381, 56548), (402, 53594), (422, 51054), (508, 42411), (633, 34036), (762, 28274), (804, 26797), (844, 25527), (1266, 17018), (1524, 14137), (2532, 8509)]