21560925

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{4049}}^1$

素因数の和:4133

約数の個数: 24

約数和(自身を含む): 36158400

約数和(自身を除く): 14597475

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 4049, 5325, 12147, 20245, 60735, 101225, 287479, 303675, 862437, 1437395, 4312185, 7186975, 21560925]

約数ペア:

[(1, 21560925), (3, 7186975), (5, 4312185), (15, 1437395), (25, 862437), (71, 303675), (75, 287479), (213, 101225), (355, 60735), (1065, 20245), (1775, 12147), (4049, 5325)]