19938723

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41281}}^1$

素因数の和:41314

約数の個数: 16

約数和(自身を含む): 31704576

約数和(自身を除く): 11765853

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 41281, 123843, 288967, 866901, 949463, 2848389, 6646241, 19938723]

約数ペア:

[(1, 19938723), (3, 6646241), (7, 2848389), (21, 949463), (23, 866901), (69, 288967), (161, 123843), (483, 41281)]