19781717

素因数分解:

${\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{1481}}^1$

素因数の和:1556

約数の個数: 12

約数和(自身を含む): 21456396

約数和(自身を除く): 1674679

約数列:

[1, 19, 37, 361, 703, 1481, 13357, 28139, 54797, 534641, 1041143, 19781717]

約数ペア:

[(1, 19781717), (19, 1041143), (37, 534641), (361, 54797), (703, 28139), (1481, 13357)]