199938417

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{257321}}^1$

素因数の和:257368

約数の個数: 16

約数和(自身を含む): 312903552

約数和(自身を除く): 112965135

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 257321, 771963, 1801247, 5403741, 9520877, 28562631, 66646139, 199938417]

約数ペア:

[(1, 199938417), (3, 66646139), (7, 28562631), (21, 9520877), (37, 5403741), (111, 1801247), (259, 771963), (777, 257321)]