20951530

素因数分解:

$2^1\times 5^1\times {\mathrm{877}}^1\times {\mathrm{2389}}^1$

素因数の和:3273

約数の個数: 16

約数和(自身を含む): 37771560

約数和(自身を除く): 16820030

約数列:

[1, 2, 5, 10, 877, 1754, 2389, 4385, 4778, 8770, 11945, 23890, 2095153, 4190306, 10475765, 20951530]

約数ペア:

[(1, 20951530), (2, 10475765), (5, 4190306), (10, 2095153), (877, 23890), (1754, 11945), (2389, 8770), (4385, 4778)]