21984453

素因数分解:

$3^6\times {\mathrm{53}}^1\times {\mathrm{569}}^1$

素因数の和:640

約数の個数: 28

約数和(自身を含む): 33642540

約数和(自身を除く): 11658087

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 569, 729, 1431, 1707, 4293, 5121, 12879, 15363, 30157, 38637, 46089, 90471, 138267, 271413, 414801, 814239, 2442717, 7328151, 21984453]

約数ペア:

[(1, 21984453), (3, 7328151), (9, 2442717), (27, 814239), (53, 414801), (81, 271413), (159, 138267), (243, 90471), (477, 46089), (569, 38637), (729, 30157), (1431, 15363), (1707, 12879), (4293, 5121)]