71994591

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{22159}}^1$

素因数の和:22203

約数の個数: 18

約数和(自身を含む): 109758480

約数和(自身を除く): 37763889

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 22159, 66477, 199431, 421021, 1263063, 3789189, 7999399, 23998197, 71994591]

約数ペア:

[(1, 71994591), (3, 23998197), (9, 7999399), (19, 3789189), (57, 1263063), (171, 421021), (361, 199431), (1083, 66477), (3249, 22159)]