18985142

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{4129}}^1$

素因数の和:4172

約数の個数: 24

約数和(自身を含む): 32957400

約数和(自身を除く): 13972258

約数列:

[1, 2, 11, 19, 22, 38, 121, 209, 242, 418, 2299, 4129, 4598, 8258, 45419, 78451, 90838, 156902, 499609, 862961, 999218, 1725922, 9492571, 18985142]

約数ペア:

[(1, 18985142), (2, 9492571), (11, 1725922), (19, 999218), (22, 862961), (38, 499609), (121, 156902), (209, 90838), (242, 78451), (418, 45419), (2299, 8258), (4129, 4598)]