20297265

素因数分解:

$3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2111}}^1$

素因数の和:2760

約数の個数: 16

約数和(自身を含む): 32541696

約数和(自身を除く): 12244431

約数列:

[1, 3, 5, 15, 641, 1923, 2111, 3205, 6333, 9615, 10555, 31665, 1353151, 4059453, 6765755, 20297265]

約数ペア:

[(1, 20297265), (3, 6765755), (5, 4059453), (15, 1353151), (641, 31665), (1923, 10555), (2111, 9615), (3205, 6333)]