21445173

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{653}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 32137560

約数和(自身を除く): 10692387

約数列:

[1, 3, 9, 41, 89, 123, 267, 369, 653, 801, 1959, 3649, 5877, 10947, 26773, 32841, 58117, 80319, 174351, 240957, 523053, 2382797, 7148391, 21445173]

約数ペア:

[(1, 21445173), (3, 7148391), (9, 2382797), (41, 523053), (89, 240957), (123, 174351), (267, 80319), (369, 58117), (653, 32841), (801, 26773), (1959, 10947), (3649, 5877)]