20806695

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5081}}^1$

素因数の和:5112

約数の個数: 48

約数和(自身を含む): 44396352

約数和(自身を除く): 23589657

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 5081, 15243, 25405, 35567, 45729, 66053, 76215, 106701, 177835, 198159, 228645, 320103, 330265, 462371, 533505, 594477, 990795, 1387113, 1600515, 2311855, 2972385, 4161339, 6935565, 20806695]

約数ペア:

[(1, 20806695), (3, 6935565), (5, 4161339), (7, 2972385), (9, 2311855), (13, 1600515), (15, 1387113), (21, 990795), (35, 594477), (39, 533505), (45, 462371), (63, 330265), (65, 320103), (91, 228645), (105, 198159), (117, 177835), (195, 106701), (273, 76215), (315, 66053), (455, 45729), (585, 35567), (819, 25405), (1365, 15243), (4095, 5081)]