21683943

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{5051}}^1$

素因数の和:5116

約数の個数: 20

約数和(自身を含む): 33009768

約数和(自身を除く): 11325825

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 5051, 15153, 45459, 136377, 267703, 409131, 803109, 2409327, 7227981, 21683943]

約数ペア:

[(1, 21683943), (3, 7227981), (9, 2409327), (27, 803109), (53, 409131), (81, 267703), (159, 136377), (477, 45459), (1431, 15153), (4293, 5051)]