21294009

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23899}}^1$

素因数の和:23922

約数の個数: 20

約数和(自身を含む): 34702800

約数和(自身を除く): 13408791

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 23899, 71697, 215091, 262889, 645273, 788667, 1935819, 2366001, 7098003, 21294009]

約数ペア:

[(1, 21294009), (3, 7098003), (9, 2366001), (11, 1935819), (27, 788667), (33, 645273), (81, 262889), (99, 215091), (297, 71697), (891, 23899)]