21181649

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 22909440

約数和(自身を除く): 1727791

約数列:

[1, 31, 37, 59, 313, 1147, 1829, 2183, 9703, 11581, 18467, 67673, 359011, 572477, 683279, 21181649]

約数ペア:

[(1, 21181649), (31, 683279), (37, 572477), (59, 359011), (313, 67673), (1147, 18467), (1829, 11581), (2183, 9703)]