20736261

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3617}}^1$

素因数の和:3650

約数の個数: 36

約数和(自身を含む): 37533132

約数和(自身を除く): 16796871

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 3617, 5733, 10851, 25319, 32553, 47021, 75957, 141063, 177233, 227871, 329147, 423189, 531699, 987441, 1595097, 2304029, 2962323, 6912087, 20736261]

約数ペア:

[(1, 20736261), (3, 6912087), (7, 2962323), (9, 2304029), (13, 1595097), (21, 987441), (39, 531699), (49, 423189), (63, 329147), (91, 227871), (117, 177233), (147, 141063), (273, 75957), (441, 47021), (637, 32553), (819, 25319), (1911, 10851), (3617, 5733)]