18731727

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4073}}^1$

素因数の和:4159

約数の個数: 24

約数和(自身を含む): 31353504

約数和(自身を除く): 12621777

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4073, 4599, 12219, 28511, 36657, 85533, 256599, 297329, 891987, 2081303, 2675961, 6243909, 18731727]

約数ペア:

[(1, 18731727), (3, 6243909), (7, 2675961), (9, 2081303), (21, 891987), (63, 297329), (73, 256599), (219, 85533), (511, 36657), (657, 28511), (1533, 12219), (4073, 4599)]