19178739

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1297}}^1$

素因数の和:1387

約数の個数: 24

約数和(自身を含む): 29158272

約数和(自身を除く): 9979533

約数列:

[1, 3, 9, 31, 53, 93, 159, 279, 477, 1297, 1643, 3891, 4929, 11673, 14787, 40207, 68741, 120621, 206223, 361863, 618669, 2130971, 6392913, 19178739]

約数ペア:

[(1, 19178739), (3, 6392913), (9, 2130971), (31, 618669), (53, 361863), (93, 206223), (159, 120621), (279, 68741), (477, 40207), (1297, 14787), (1643, 11673), (3891, 4929)]