16720065

素因数分解:

$3^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{653}}^1$

素因数の和:1233

約数の個数: 24

約数和(自身を含む): 29076840

約数和(自身を除く): 12356775

約数列:

[1, 3, 5, 9, 15, 45, 569, 653, 1707, 1959, 2845, 3265, 5121, 5877, 8535, 9795, 25605, 29385, 371557, 1114671, 1857785, 3344013, 5573355, 16720065]

約数ペア:

[(1, 16720065), (3, 5573355), (5, 3344013), (9, 1857785), (15, 1114671), (45, 371557), (569, 29385), (653, 25605), (1707, 9795), (1959, 8535), (2845, 5877), (3265, 5121)]