20804938413

素因数分解:

$3^1\times 7^1\times {\mathrm{2141}}^1\times {\mathrm{462733}}^1$

素因数の和:464884

約数の個数: 16

約数和(自身を含む): 31717639296

約数和(自身を除く): 10912700883

約数列:

[1, 3, 7, 21, 2141, 6423, 14987, 44961, 462733, 1388199, 3239131, 9717393, 990711353, 2972134059, 6934979471, 20804938413]

約数ペア:

[(1, 20804938413), (3, 6934979471), (7, 2972134059), (21, 990711353), (2141, 9717393), (6423, 3239131), (14987, 1388199), (44961, 462733)]