18507909

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{12073}}^1$

素因数の和:12156

約数の個数: 16

約数和(自身を含む): 28591232

約数和(自身を除く): 10083323

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 12073, 36219, 84511, 253533, 881329, 2643987, 6169303, 18507909]

約数ペア:

[(1, 18507909), (3, 6169303), (7, 2643987), (21, 881329), (73, 253533), (219, 84511), (511, 36219), (1533, 12073)]