28720901

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{761}}^1$

素因数の和:892

約数の個数: 16

約数和(自身を含む): 32479488

約数和(自身を除く): 3758587

約数列:

[1, 11, 47, 73, 517, 761, 803, 3431, 8371, 35767, 37741, 55553, 393437, 611083, 2610991, 28720901]

約数ペア:

[(1, 28720901), (11, 2610991), (47, 611083), (73, 393437), (517, 55553), (761, 37741), (803, 35767), (3431, 8371)]