21972303

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{4759}}^1$

素因数の和:4793

約数の個数: 24

約数和(自身を含む): 34652800

約数和(自身を除く): 12680497

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4617, 4759, 14277, 42831, 90421, 128493, 271263, 385479, 813789, 1156437, 2441367, 7324101, 21972303]

約数ペア:

[(1, 21972303), (3, 7324101), (9, 2441367), (19, 1156437), (27, 813789), (57, 385479), (81, 271263), (171, 128493), (243, 90421), (513, 42831), (1539, 14277), (4617, 4759)]