20964705

素因数分解:

$3^1\times 5^1\times {\mathrm{587}}^1\times {\mathrm{2381}}^1$

素因数の和:2976

約数の個数: 16

約数和(自身を含む): 33614784

約数和(自身を除く): 12650079

約数列:

[1, 3, 5, 15, 587, 1761, 2381, 2935, 7143, 8805, 11905, 35715, 1397647, 4192941, 6988235, 20964705]

約数ペア:

[(1, 20964705), (3, 6988235), (5, 4192941), (15, 1397647), (587, 35715), (1761, 11905), (2381, 8805), (2935, 7143)]