20881314

素因数分解:

$2^1\times 3^4\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:992

約数の個数: 40

約数和(自身を含む): 47144988

約数和(自身を除く): 26263674

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 157, 162, 314, 471, 821, 942, 1413, 1642, 2463, 2826, 4239, 4926, 7389, 8478, 12717, 14778, 22167, 25434, 44334, 66501, 128897, 133002, 257794, 386691, 773382, 1160073, 2320146, 3480219, 6960438, 10440657, 20881314]

約数ペア:

[(1, 20881314), (2, 10440657), (3, 6960438), (6, 3480219), (9, 2320146), (18, 1160073), (27, 773382), (54, 386691), (81, 257794), (157, 133002), (162, 128897), (314, 66501), (471, 44334), (821, 25434), (942, 22167), (1413, 14778), (1642, 12717), (2463, 8478), (2826, 7389), (4239, 4926)]