18545516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{809}}^1$

素因数の和:1345

約数の個数: 24

約数和(自身を含む): 35516880

約数和(自身を除く): 16971364

約数列:

[1, 2, 4, 11, 22, 44, 521, 809, 1042, 1618, 2084, 3236, 5731, 8899, 11462, 17798, 22924, 35596, 421489, 842978, 1685956, 4636379, 9272758, 18545516]

約数ペア:

[(1, 18545516), (2, 9272758), (4, 4636379), (11, 1685956), (22, 842978), (44, 421489), (521, 35596), (809, 22924), (1042, 17798), (1618, 11462), (2084, 8899), (3236, 5731)]