20895455

素因数分解:

$5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{2203}}^1$

素因数の和:2486

約数の個数: 16

約数和(自身を含む): 28775424

約数和(自身を除く): 7879969

約数列:

[1, 5, 7, 35, 271, 1355, 1897, 2203, 9485, 11015, 15421, 77105, 597013, 2985065, 4179091, 20895455]

約数ペア:

[(1, 20895455), (5, 4179091), (7, 2985065), (35, 597013), (271, 77105), (1355, 15421), (1897, 11015), (2203, 9485)]