25499019

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 45416448

約数和(自身を除く): 19917429

約数列:

[1, 3, 7, 13, 21, 23, 31, 39, 69, 91, 93, 131, 161, 217, 273, 299, 393, 403, 483, 651, 713, 897, 917, 1209, 1703, 2093, 2139, 2751, 2821, 3013, 4061, 4991, 5109, 6279, 8463, 9039, 9269, 11921, 12183, 14973, 21091, 27807, 28427, 35763, 39169, 52793, 63273, 64883, 85281, 93403, 117507, 158379, 194649, 274183, 280209, 369551, 653821, 822549, 1108653, 1214239, 1961463, 3642717, 8499673, 25499019]

約数ペア:

[(1, 25499019), (3, 8499673), (7, 3642717), (13, 1961463), (21, 1214239), (23, 1108653), (31, 822549), (39, 653821), (69, 369551), (91, 280209), (93, 274183), (131, 194649), (161, 158379), (217, 117507), (273, 93403), (299, 85281), (393, 64883), (403, 63273), (483, 52793), (651, 39169), (713, 35763), (897, 28427), (917, 27807), (1209, 21091), (1703, 14973), (2093, 12183), (2139, 11921), (2751, 9269), (2821, 9039), (3013, 8463), (4061, 6279), (4991, 5109)]