21062950

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 41140224

約数和(自身を除く): 20077274

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 107, 127, 155, 214, 254, 310, 535, 635, 775, 1070, 1270, 1550, 2675, 3175, 3317, 3937, 5350, 6350, 6634, 7874, 13589, 16585, 19685, 27178, 33170, 39370, 67945, 82925, 98425, 135890, 165850, 196850, 339725, 421259, 679450, 842518, 2106295, 4212590, 10531475, 21062950]

約数ペア:

[(1, 21062950), (2, 10531475), (5, 4212590), (10, 2106295), (25, 842518), (31, 679450), (50, 421259), (62, 339725), (107, 196850), (127, 165850), (155, 135890), (214, 98425), (254, 82925), (310, 67945), (535, 39370), (635, 33170), (775, 27178), (1070, 19685), (1270, 16585), (1550, 13589), (2675, 7874), (3175, 6634), (3317, 6350), (3937, 5350)]