21318748

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2591}}^1$

素因数の和:2634

約数の個数: 36

約数和(自身を含む): 43436736

約数和(自身を除く): 22117988

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 121, 187, 242, 374, 484, 748, 2057, 2591, 4114, 5182, 8228, 10364, 28501, 44047, 57002, 88094, 114004, 176188, 313511, 484517, 627022, 969034, 1254044, 1938068, 5329687, 10659374, 21318748]

約数ペア:

[(1, 21318748), (2, 10659374), (4, 5329687), (11, 1938068), (17, 1254044), (22, 969034), (34, 627022), (44, 484517), (68, 313511), (121, 176188), (187, 114004), (242, 88094), (374, 57002), (484, 44047), (748, 28501), (2057, 10364), (2591, 8228), (4114, 5182)]