20001813

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{26993}}^1$

素因数の和:27028

約数の個数: 16

約数和(自身を含む): 30233280

約数和(自身を除く): 10231467

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 26993, 80979, 350909, 512867, 1052727, 1538601, 6667271, 20001813]

約数ペア:

[(1, 20001813), (3, 6667271), (13, 1538601), (19, 1052727), (39, 512867), (57, 350909), (247, 80979), (741, 26993)]