20824605

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6907}}^1$

素因数の和:6985

約数の個数: 24

約数和(自身を含む): 36640032

約数和(自身を除く): 15815427

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 6907, 20721, 34535, 62163, 103605, 310815, 462769, 1388307, 2313845, 4164921, 6941535, 20824605]

約数ペア:

[(1, 20824605), (3, 6941535), (5, 4164921), (9, 2313845), (15, 1388307), (45, 462769), (67, 310815), (201, 103605), (335, 62163), (603, 34535), (1005, 20721), (3015, 6907)]