20471397

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{4289}}^1$

素因数の和:4372

約数の個数: 16

約数和(自身を含む): 28691520

約数和(自身を除く): 8220123

約数列:

[1, 3, 37, 43, 111, 129, 1591, 4289, 4773, 12867, 158693, 184427, 476079, 553281, 6823799, 20471397]

約数ペア:

[(1, 20471397), (3, 6823799), (37, 553281), (43, 476079), (111, 184427), (129, 158693), (1591, 12867), (4289, 4773)]