21395090

素因数分解:

$2^1\times 5^1\times {\mathrm{883}}^1\times {\mathrm{2423}}^1$

素因数の和:3313

約数の個数: 16

約数和(自身を含む): 38570688

約数和(自身を除く): 17175598

約数列:

[1, 2, 5, 10, 883, 1766, 2423, 4415, 4846, 8830, 12115, 24230, 2139509, 4279018, 10697545, 21395090]

約数ペア:

[(1, 21395090), (2, 10697545), (5, 4279018), (10, 2139509), (883, 24230), (1766, 12115), (2423, 8830), (4415, 4846)]