18020865

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{16921}}^1$

素因数の和:17000

約数の個数: 16

約数和(自身を含む): 29241216

約数和(自身を除く): 11220351

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 16921, 50763, 84605, 253815, 1201391, 3604173, 6006955, 18020865]

約数ペア:

[(1, 18020865), (3, 6006955), (5, 3604173), (15, 1201391), (71, 253815), (213, 84605), (355, 50763), (1065, 16921)]