25982019

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 47308800

約数和(自身を除く): 21326781

約数列:

[1, 3, 7, 9, 21, 23, 27, 43, 63, 69, 129, 139, 161, 189, 207, 301, 387, 417, 483, 621, 903, 973, 989, 1161, 1251, 1449, 2709, 2919, 2967, 3197, 3753, 4347, 5977, 6923, 8127, 8757, 8901, 9591, 17931, 20769, 22379, 26271, 26703, 28773, 41839, 53793, 62307, 67137, 86319, 125517, 137471, 161379, 186921, 201411, 376551, 412413, 604233, 962297, 1129653, 1237239, 2886891, 3711717, 8660673, 25982019]

約数ペア:

[(1, 25982019), (3, 8660673), (7, 3711717), (9, 2886891), (21, 1237239), (23, 1129653), (27, 962297), (43, 604233), (63, 412413), (69, 376551), (129, 201411), (139, 186921), (161, 161379), (189, 137471), (207, 125517), (301, 86319), (387, 67137), (417, 62307), (483, 53793), (621, 41839), (903, 28773), (973, 26703), (989, 26271), (1161, 22379), (1251, 20769), (1449, 17931), (2709, 9591), (2919, 8901), (2967, 8757), (3197, 8127), (3753, 6923), (4347, 5977)]