20154991

素因数分解:

${\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{1801}}^1$

素因数の和:1870

約数の個数: 12

約数和(自身を含む): 21969984

約数和(自身を除く): 1814993

約数列:

[1, 19, 31, 361, 589, 1801, 11191, 34219, 55831, 650161, 1060789, 20154991]

約数ペア:

[(1, 20154991), (19, 1060789), (31, 650161), (361, 55831), (589, 34219), (1801, 11191)]