21759955

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{27031}}^1$

素因数の和:27066

約数の個数: 16

約数和(自身を含む): 31140864

約数和(自身を除く): 9380909

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 27031, 135155, 189217, 621713, 946085, 3108565, 4351991, 21759955]

約数ペア:

[(1, 21759955), (5, 4351991), (7, 3108565), (23, 946085), (35, 621713), (115, 189217), (161, 135155), (805, 27031)]