21249710

素因数分解:

$2^1\times 5^1\times {\mathrm{877}}^1\times {\mathrm{2423}}^1$

素因数の和:3307

約数の個数: 16

約数和(自身を含む): 38308896

約数和(自身を除く): 17059186

約数列:

[1, 2, 5, 10, 877, 1754, 2423, 4385, 4846, 8770, 12115, 24230, 2124971, 4249942, 10624855, 21249710]

約数ペア:

[(1, 21249710), (2, 10624855), (5, 4249942), (10, 2124971), (877, 24230), (1754, 12115), (2423, 8770), (4385, 4846)]