20154197

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{659}}^1$

素因数の和:940

約数の個数: 16

約数和(自身を含む): 24520320

約数和(自身を除く): 4366123

約数列:

[1, 7, 17, 119, 257, 659, 1799, 4369, 4613, 11203, 30583, 78421, 169363, 1185541, 2879171, 20154197]

約数ペア:

[(1, 20154197), (7, 2879171), (17, 1185541), (119, 169363), (257, 78421), (659, 30583), (1799, 11203), (4369, 4613)]