21094911

素因数分解:

$3^4\times {\mathrm{31}}^2\times {\mathrm{271}}^1$

素因数の和:345

約数の個数: 30

約数和(自身を含む): 32681616

約数和(自身を除く): 11586705

約数列:

[1, 3, 9, 27, 31, 81, 93, 271, 279, 813, 837, 961, 2439, 2511, 2883, 7317, 8401, 8649, 21951, 25203, 25947, 75609, 77841, 226827, 260431, 680481, 781293, 2343879, 7031637, 21094911]

約数ペア:

[(1, 21094911), (3, 7031637), (9, 2343879), (27, 781293), (31, 680481), (81, 260431), (93, 226827), (271, 77841), (279, 75609), (813, 25947), (837, 25203), (961, 21951), (2439, 8649), (2511, 8401), (2883, 7317)]