20779803

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{487}}^1$

素因数の和:935

約数の個数: 24

約数和(自身を含む): 32887296

約数和(自身を除く): 12107493

約数列:

[1, 3, 9, 11, 33, 99, 431, 487, 1293, 1461, 3879, 4383, 4741, 5357, 14223, 16071, 42669, 48213, 209897, 629691, 1889073, 2308867, 6926601, 20779803]

約数ペア:

[(1, 20779803), (3, 6926601), (9, 2308867), (11, 1889073), (33, 629691), (99, 209897), (431, 48213), (487, 42669), (1293, 16071), (1461, 14223), (3879, 5357), (4383, 4741)]