20004747

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13417}}^1$

素因数の和:13498

約数の個数: 16

約数和(自身を含む): 30915072

約数和(自身を除く): 10910325

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13417, 40251, 93919, 281757, 952607, 2857821, 6668249, 20004747]

約数ペア:

[(1, 20004747), (3, 6668249), (7, 2857821), (21, 952607), (71, 281757), (213, 93919), (497, 40251), (1491, 13417)]