21227591

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8893}}^1$

素因数の和:8942

約数の個数: 16

約数和(自身を含む): 27322368

約数和(自身を除く): 6094777

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 8893, 62251, 97823, 275683, 684761, 1929781, 3032513, 21227591]

約数ペア:

[(1, 21227591), (7, 3032513), (11, 1929781), (31, 684761), (77, 275683), (217, 97823), (341, 62251), (2387, 8893)]