199373391

素因数分解:

$3^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{7517}}^1$

素因数の和:7951

約数の個数: 24

約数和(自身を含む): 329949984

約数和(自身を除く): 130576593

約数列:

[1, 3, 7, 9, 21, 63, 421, 1263, 2947, 3789, 7517, 8841, 22551, 26523, 52619, 67653, 157857, 473571, 3164657, 9493971, 22152599, 28481913, 66457797, 199373391]

約数ペア:

[(1, 199373391), (3, 66457797), (7, 28481913), (9, 22152599), (21, 9493971), (63, 3164657), (421, 473571), (1263, 157857), (2947, 67653), (3789, 52619), (7517, 26523), (8841, 22551)]