20284785

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5431}}^1$

素因数の和:5525

約数の個数: 24

約数和(自身を含む): 35590464

約数和(自身を除く): 15305679

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 5431, 16293, 27155, 48879, 81465, 244395, 450773, 1352319, 2253865, 4056957, 6761595, 20284785]

約数ペア:

[(1, 20284785), (3, 6761595), (5, 4056957), (9, 2253865), (15, 1352319), (45, 450773), (83, 244395), (249, 81465), (415, 48879), (747, 27155), (1245, 16293), (3735, 5431)]