21699692

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 45239040

約数和(自身を除く): 23539348

約数列:

[1, 2, 4, 7, 14, 28, 43, 67, 86, 134, 172, 268, 269, 301, 469, 538, 602, 938, 1076, 1204, 1876, 1883, 2881, 3766, 5762, 7532, 11524, 11567, 18023, 20167, 23134, 36046, 40334, 46268, 72092, 80668, 80969, 126161, 161938, 252322, 323876, 504644, 774989, 1549978, 3099956, 5424923, 10849846, 21699692]

約数ペア:

[(1, 21699692), (2, 10849846), (4, 5424923), (7, 3099956), (14, 1549978), (28, 774989), (43, 504644), (67, 323876), (86, 252322), (134, 161938), (172, 126161), (268, 80969), (269, 80668), (301, 72092), (469, 46268), (538, 40334), (602, 36046), (938, 23134), (1076, 20167), (1204, 18023), (1876, 11567), (1883, 11524), (2881, 7532), (3766, 5762)]