218971940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{995327}}^1$

素因数の和:995347

約数の個数: 24

約数和(自身を含む): 501645312

約数和(自身を除く): 282673372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 995327, 1990654, 3981308, 4976635, 9953270, 10948597, 19906540, 21897194, 43794388, 54742985, 109485970, 218971940]

約数ペア:

[(1, 218971940), (2, 109485970), (4, 54742985), (5, 43794388), (10, 21897194), (11, 19906540), (20, 10948597), (22, 9953270), (44, 4976635), (55, 3981308), (110, 1990654), (220, 995327)]