20774709

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 30950400

約数和(自身を除く): 10175691

約数列:

[1, 3, 9, 61, 79, 183, 237, 479, 549, 711, 1437, 4311, 4819, 14457, 29219, 37841, 43371, 87657, 113523, 262971, 340569, 2308301, 6924903, 20774709]

約数ペア:

[(1, 20774709), (3, 6924903), (9, 2308301), (61, 340569), (79, 262971), (183, 113523), (237, 87657), (479, 43371), (549, 37841), (711, 29219), (1437, 14457), (4311, 4819)]