20778219

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29983}}^1$

素因数の和:30007

約数の個数: 24

約数和(自身を含む): 37420032

約数和(自身を除く): 16641813

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 29983, 89949, 209881, 269847, 329813, 629643, 989439, 1888929, 2308691, 2968317, 6926073, 20778219]

約数ペア:

[(1, 20778219), (3, 6926073), (7, 2968317), (9, 2308691), (11, 1888929), (21, 989439), (33, 629643), (63, 329813), (77, 269847), (99, 209881), (231, 89949), (693, 29983)]