19912320727

素因数分解:

${\mathrm{13}}^2\times {\mathrm{293}}^1\times {\mathrm{402131}}^1$

素因数の和:402450

約数の個数: 12

約数和(自身を含む): 21635505864

約数和(自身を除く): 1723185137

約数列:

[1, 13, 169, 293, 3809, 49517, 402131, 5227703, 67960139, 117824383, 1531716979, 19912320727]

約数ペア:

[(1, 19912320727), (13, 1531716979), (169, 117824383), (293, 67960139), (3809, 5227703), (49517, 402131)]