18039398

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^2$

素因数の和:153

約数の個数: 36

約数和(自身を含む): 31435740

約数和(自身を除く): 13396342

約数列:

[1, 2, 13, 19, 26, 38, 53, 106, 169, 247, 338, 494, 689, 1007, 1378, 2014, 2809, 3211, 5618, 6422, 8957, 13091, 17914, 26182, 36517, 53371, 73034, 106742, 170183, 340366, 474721, 693823, 949442, 1387646, 9019699, 18039398]

約数ペア:

[(1, 18039398), (2, 9019699), (13, 1387646), (19, 949442), (26, 693823), (38, 474721), (53, 340366), (106, 170183), (169, 106742), (247, 73034), (338, 53371), (494, 36517), (689, 26182), (1007, 17914), (1378, 13091), (2014, 8957), (2809, 6422), (3211, 5618)]