18764538

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{240571}}^1$

素因数の和:240589

約数の個数: 16

約数和(自身を含む): 40416096

約数和(自身を除く): 21651558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 240571, 481142, 721713, 1443426, 3127423, 6254846, 9382269, 18764538]

約数ペア:

[(1, 18764538), (2, 9382269), (3, 6254846), (6, 3127423), (13, 1443426), (26, 721713), (39, 481142), (78, 240571)]