20341971

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{127}}^1$

素因数の和:220

約数の個数: 36

約数和(自身を含む): 32777472

約数和(自身を除く): 12435501

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 127, 333, 381, 481, 1143, 1369, 1443, 1651, 4107, 4329, 4699, 4953, 12321, 14097, 14859, 17797, 42291, 53391, 61087, 160173, 173863, 183261, 521589, 549783, 1564767, 2260219, 6780657, 20341971]

約数ペア:

[(1, 20341971), (3, 6780657), (9, 2260219), (13, 1564767), (37, 549783), (39, 521589), (111, 183261), (117, 173863), (127, 160173), (333, 61087), (381, 53391), (481, 42291), (1143, 17797), (1369, 14859), (1443, 14097), (1651, 12321), (4107, 4953), (4329, 4699)]