21987609

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{45523}}^1$

素因数の和:45556

約数の個数: 16

約数和(自身を含む): 34962432

約数和(自身を除く): 12974823

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 45523, 136569, 318661, 955983, 1047029, 3141087, 7329203, 21987609]

約数ペア:

[(1, 21987609), (3, 7329203), (7, 3141087), (21, 1047029), (23, 955983), (69, 318661), (161, 136569), (483, 45523)]