18211795

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{11071}}^1$

素因数の和:11130

約数の個数: 16

約数和(自身を含む): 25509888

約数和(自身を除く): 7298093

約数列:

[1, 5, 7, 35, 47, 235, 329, 1645, 11071, 55355, 77497, 387485, 520337, 2601685, 3642359, 18211795]

約数ペア:

[(1, 18211795), (5, 3642359), (7, 2601685), (35, 520337), (47, 387485), (235, 77497), (329, 55355), (1645, 11071)]