21060515

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{6761}}^1$

素因数の和:6862

約数の個数: 16

約数和(自身を含む): 29211840

約数和(自身を除く): 8151325

約数列:

[1, 5, 7, 35, 89, 445, 623, 3115, 6761, 33805, 47327, 236635, 601729, 3008645, 4212103, 21060515]

約数ペア:

[(1, 21060515), (5, 4212103), (7, 3008645), (35, 601729), (89, 236635), (445, 47327), (623, 33805), (3115, 6761)]