21180969

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{941}}^1$

素因数の和:1049

約数の個数: 24

約数和(自身を含む): 31888584

約数和(自身を除く): 10707615

約数列:

[1, 3, 9, 41, 61, 123, 183, 369, 549, 941, 2501, 2823, 7503, 8469, 22509, 38581, 57401, 115743, 172203, 347229, 516609, 2353441, 7060323, 21180969]

約数ペア:

[(1, 21180969), (3, 7060323), (9, 2353441), (41, 516609), (61, 347229), (123, 172203), (183, 115743), (369, 57401), (549, 38581), (941, 22509), (2501, 8469), (2823, 7503)]