81393193

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1\times {\mathrm{421}}^1$

素因数の和:888

約数の個数: 16

約数和(自身を含む): 94798080

約数和(自身を除く): 13404887

約数列:

[1, 7, 71, 389, 421, 497, 2723, 2947, 27619, 29891, 163769, 193333, 209237, 1146383, 11627599, 81393193]

約数ペア:

[(1, 81393193), (7, 11627599), (71, 1146383), (389, 209237), (421, 193333), (497, 163769), (2723, 29891), (2947, 27619)]