21082457

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{677}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 24408000

約数和(自身を除く): 3325543

約数列:

[1, 11, 19, 149, 209, 677, 1639, 2831, 7447, 12863, 31141, 100873, 141493, 1109603, 1916587, 21082457]

約数ペア:

[(1, 21082457), (11, 1916587), (19, 1109603), (149, 141493), (209, 100873), (677, 31141), (1639, 12863), (2831, 7447)]