25648749

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 45686784

約数和(自身を除く): 20038035

約数列:

[1, 3, 7, 9, 21, 23, 31, 63, 69, 93, 161, 207, 217, 279, 483, 571, 651, 713, 1449, 1713, 1953, 2139, 3997, 4991, 5139, 6417, 11991, 13133, 14973, 17701, 35973, 39399, 44919, 53103, 91931, 118197, 123907, 159309, 275793, 371721, 407123, 827379, 1115163, 1221369, 2849861, 3664107, 8549583, 25648749]

約数ペア:

[(1, 25648749), (3, 8549583), (7, 3664107), (9, 2849861), (21, 1221369), (23, 1115163), (31, 827379), (63, 407123), (69, 371721), (93, 275793), (161, 159309), (207, 123907), (217, 118197), (279, 91931), (483, 53103), (571, 44919), (651, 39399), (713, 35973), (1449, 17701), (1713, 14973), (1953, 13133), (2139, 11991), (3997, 6417), (4991, 5139)]