18645879

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{12163}}^1$

素因数の和:12246

約数の個数: 16

約数和(自身を含む): 28804352

約数和(自身を除く): 10158473

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 12163, 36489, 85141, 255423, 887899, 2663697, 6215293, 18645879]

約数ペア:

[(1, 18645879), (3, 6215293), (7, 2663697), (21, 887899), (73, 255423), (219, 85141), (511, 36489), (1533, 12163)]