20217008

素因数分解:

$2^4\times 7^2\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:370

約数の個数: 60

約数和(自身を含む): 46182312

約数和(自身を除く): 25965304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 107, 112, 196, 214, 241, 392, 428, 482, 749, 784, 856, 964, 1498, 1687, 1712, 1928, 2996, 3374, 3856, 5243, 5992, 6748, 10486, 11809, 11984, 13496, 20972, 23618, 25787, 26992, 41944, 47236, 51574, 83888, 94472, 103148, 180509, 188944, 206296, 361018, 412592, 722036, 1263563, 1444072, 2527126, 2888144, 5054252, 10108504, 20217008]

約数ペア:

[(1, 20217008), (2, 10108504), (4, 5054252), (7, 2888144), (8, 2527126), (14, 1444072), (16, 1263563), (28, 722036), (49, 412592), (56, 361018), (98, 206296), (107, 188944), (112, 180509), (196, 103148), (214, 94472), (241, 83888), (392, 51574), (428, 47236), (482, 41944), (749, 26992), (784, 25787), (856, 23618), (964, 20972), (1498, 13496), (1687, 11984), (1712, 11809), (1928, 10486), (2996, 6748), (3374, 5992), (3856, 5243)]