20165715

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3271}}^1$

素因数の和:3419

約数の個数: 24

約数和(自身を含む): 35219808

約数和(自身を除く): 15054093

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 3271, 6165, 9813, 16355, 29439, 49065, 147195, 448127, 1344381, 2240635, 4033143, 6721905, 20165715]

約数ペア:

[(1, 20165715), (3, 6721905), (5, 4033143), (9, 2240635), (15, 1344381), (45, 448127), (137, 147195), (411, 49065), (685, 29439), (1233, 16355), (2055, 9813), (3271, 6165)]