21006909

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{30313}}^1$

素因数の和:30337

約数の個数: 24

約数和(自身を含む): 37831872

約数和(自身を除く): 16824963

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30313, 90939, 212191, 272817, 333443, 636573, 1000329, 1909719, 2334101, 3000987, 7002303, 21006909]

約数ペア:

[(1, 21006909), (3, 7002303), (7, 3000987), (9, 2334101), (11, 1909719), (21, 1000329), (33, 636573), (63, 333443), (77, 272817), (99, 212191), (231, 90939), (693, 30313)]