21182896

素因数分解:

$2^4\times 7^2\times {\mathrm{41}}^1\times {\mathrm{659}}^1$

素因数の和:722

約数の個数: 60

約数和(自身を含む): 48981240

約数和(自身を除く): 27798344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 49, 56, 82, 98, 112, 164, 196, 287, 328, 392, 574, 656, 659, 784, 1148, 1318, 2009, 2296, 2636, 4018, 4592, 4613, 5272, 8036, 9226, 10544, 16072, 18452, 27019, 32144, 32291, 36904, 54038, 64582, 73808, 108076, 129164, 189133, 216152, 258328, 378266, 432304, 516656, 756532, 1323931, 1513064, 2647862, 3026128, 5295724, 10591448, 21182896]

約数ペア:

[(1, 21182896), (2, 10591448), (4, 5295724), (7, 3026128), (8, 2647862), (14, 1513064), (16, 1323931), (28, 756532), (41, 516656), (49, 432304), (56, 378266), (82, 258328), (98, 216152), (112, 189133), (164, 129164), (196, 108076), (287, 73808), (328, 64582), (392, 54038), (574, 36904), (656, 32291), (659, 32144), (784, 27019), (1148, 18452), (1318, 16072), (2009, 10544), (2296, 9226), (2636, 8036), (4018, 5272), (4592, 4613)]