21230696

素因数分解:

$2^3\times {\mathrm{1109}}^1\times {\mathrm{2393}}^1$

素因数の和:3508

約数の個数: 16

約数和(自身を含む): 39860100

約数和(自身を除く): 18629404

約数列:

[1, 2, 4, 8, 1109, 2218, 2393, 4436, 4786, 8872, 9572, 19144, 2653837, 5307674, 10615348, 21230696]

約数ペア:

[(1, 21230696), (2, 10615348), (4, 5307674), (8, 2653837), (1109, 19144), (2218, 9572), (2393, 8872), (4436, 4786)]