20999574

素因数分解:

$2^1\times 3^7\times {\mathrm{4801}}^1$

素因数の和:4824

約数の個数: 32

約数和(自身を含む): 47251680

約数和(自身を除く): 26252106

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 729, 1458, 2187, 4374, 4801, 9602, 14403, 28806, 43209, 86418, 129627, 259254, 388881, 777762, 1166643, 2333286, 3499929, 6999858, 10499787, 20999574]

約数ペア:

[(1, 20999574), (2, 10499787), (3, 6999858), (6, 3499929), (9, 2333286), (18, 1166643), (27, 777762), (54, 388881), (81, 259254), (162, 129627), (243, 86418), (486, 43209), (729, 28806), (1458, 14403), (2187, 9602), (4374, 4801)]