20472291

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5701}}^1$

素因数の和:5736

約数の個数: 32

約数和(自身を含む): 36492800

約数和(自身を除く): 16020509

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 5701, 17103, 39907, 51309, 108319, 119721, 153927, 324957, 359163, 758233, 974871, 1077489, 2274699, 2924613, 6824097, 20472291]

約数ペア:

[(1, 20472291), (3, 6824097), (7, 2924613), (9, 2274699), (19, 1077489), (21, 974871), (27, 758233), (57, 359163), (63, 324957), (133, 153927), (171, 119721), (189, 108319), (399, 51309), (513, 39907), (1197, 17103), (3591, 5701)]