21785008

素因数分解:

$2^4\times 7^2\times {\mathrm{37}}^1\times {\mathrm{751}}^1$

素因数の和:810

約数の個数: 60

約数和(自身を含む): 50493792

約数和(自身を除く): 28708784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 49, 56, 74, 98, 112, 148, 196, 259, 296, 392, 518, 592, 751, 784, 1036, 1502, 1813, 2072, 3004, 3626, 4144, 5257, 6008, 7252, 10514, 12016, 14504, 21028, 27787, 29008, 36799, 42056, 55574, 73598, 84112, 111148, 147196, 194509, 222296, 294392, 389018, 444592, 588784, 778036, 1361563, 1556072, 2723126, 3112144, 5446252, 10892504, 21785008]

約数ペア:

[(1, 21785008), (2, 10892504), (4, 5446252), (7, 3112144), (8, 2723126), (14, 1556072), (16, 1361563), (28, 778036), (37, 588784), (49, 444592), (56, 389018), (74, 294392), (98, 222296), (112, 194509), (148, 147196), (196, 111148), (259, 84112), (296, 73598), (392, 55574), (518, 42056), (592, 36799), (751, 29008), (784, 27787), (1036, 21028), (1502, 14504), (1813, 12016), (2072, 10514), (3004, 7252), (3626, 6008), (4144, 5257)]