25396749

素因数分解:

$3^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:479

約数の個数: 48

約数和(自身を含む): 45136000

約数和(自身を除く): 19739251

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 343, 399, 433, 441, 931, 1029, 1197, 1299, 2793, 3031, 3087, 3897, 6517, 8227, 8379, 9093, 19551, 21217, 24681, 27279, 57589, 58653, 63651, 74043, 148519, 172767, 190953, 403123, 445557, 518301, 1209369, 1336671, 2821861, 3628107, 8465583, 25396749]

約数ペア:

[(1, 25396749), (3, 8465583), (7, 3628107), (9, 2821861), (19, 1336671), (21, 1209369), (49, 518301), (57, 445557), (63, 403123), (133, 190953), (147, 172767), (171, 148519), (343, 74043), (399, 63651), (433, 58653), (441, 57589), (931, 27279), (1029, 24681), (1197, 21217), (1299, 19551), (2793, 9093), (3031, 8379), (3087, 8227), (3897, 6517)]