20727735

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28201}}^1$

素因数の和:28223

約数の個数: 24

約数和(自身を含む): 38580336

約数和(自身を除く): 17852601

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28201, 84603, 141005, 197407, 423015, 592221, 987035, 1381849, 2961105, 4145547, 6909245, 20727735]

約数ペア:

[(1, 20727735), (3, 6909245), (5, 4145547), (7, 2961105), (15, 1381849), (21, 987035), (35, 592221), (49, 423015), (105, 197407), (147, 141005), (245, 84603), (735, 28201)]