20120481997

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{689459}}^1$

素因数の和:689856

約数の個数: 16

約数和(自身を含む): 25151500800

約数和(自身を除く): 5031018803

約数列:

[1, 7, 11, 77, 379, 2653, 4169, 29183, 689459, 4826213, 7584049, 53088343, 261304961, 1829134727, 2874354571, 20120481997]

約数ペア:

[(1, 20120481997), (7, 2874354571), (11, 1829134727), (77, 261304961), (379, 53088343), (2653, 7584049), (4169, 4826213), (29183, 689459)]