21988134

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1601}}^1$

素因数の和:1725

約数の個数: 48

約数和(自身を含む): 54980640

約数和(自身を除く): 32992506

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 109, 126, 218, 327, 654, 763, 981, 1526, 1601, 1962, 2289, 3202, 4578, 4803, 6867, 9606, 11207, 13734, 14409, 22414, 28818, 33621, 67242, 100863, 174509, 201726, 349018, 523527, 1047054, 1221563, 1570581, 2443126, 3141162, 3664689, 7329378, 10994067, 21988134]

約数ペア:

[(1, 21988134), (2, 10994067), (3, 7329378), (6, 3664689), (7, 3141162), (9, 2443126), (14, 1570581), (18, 1221563), (21, 1047054), (42, 523527), (63, 349018), (109, 201726), (126, 174509), (218, 100863), (327, 67242), (654, 33621), (763, 28818), (981, 22414), (1526, 14409), (1601, 13734), (1962, 11207), (2289, 9606), (3202, 6867), (4578, 4803)]