20837271

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{601}}^1$

素因数の和:751

約数の個数: 32

約数和(自身を含む): 34521088

約数和(自身を除く): 13683817

約数列:

[1, 3, 7, 13, 21, 39, 91, 127, 273, 381, 601, 889, 1651, 1803, 2667, 4207, 4953, 7813, 11557, 12621, 23439, 34671, 54691, 76327, 164073, 228981, 534289, 992251, 1602867, 2976753, 6945757, 20837271]

約数ペア:

[(1, 20837271), (3, 6945757), (7, 2976753), (13, 1602867), (21, 992251), (39, 534289), (91, 228981), (127, 164073), (273, 76327), (381, 54691), (601, 34671), (889, 23439), (1651, 12621), (1803, 11557), (2667, 7813), (4207, 4953)]