20974804929

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19919093}}^1$

素因数の和:19919118

約数の個数: 20

約数和(自身を含む): 33742945236

約数和(自身を除く): 12768140307

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 19919093, 59757279, 179271837, 258948209, 537815511, 776844627, 1613446533, 2330533881, 6991601643, 20974804929]

約数ペア:

[(1, 20974804929), (3, 6991601643), (9, 2330533881), (13, 1613446533), (27, 776844627), (39, 537815511), (81, 258948209), (117, 179271837), (351, 59757279), (1053, 19919093)]