221724981

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{509}}^1\times {\mathrm{1669}}^1$

素因数の和:2213

約数の個数: 24

約数和(自身を含む): 332163000

約数和(自身を除く): 110438019

約数列:

[1, 3, 9, 29, 87, 261, 509, 1527, 1669, 4581, 5007, 14761, 15021, 44283, 48401, 132849, 145203, 435609, 849521, 2548563, 7645689, 24636109, 73908327, 221724981]

約数ペア:

[(1, 221724981), (3, 73908327), (9, 24636109), (29, 7645689), (87, 2548563), (261, 849521), (509, 435609), (1527, 145203), (1669, 132849), (4581, 48401), (5007, 44283), (14761, 15021)]