19999863

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3637}}^1$

素因数の和:3703

約数の個数: 24

約数和(自身を含む): 31781568

約数和(自身を除く): 11781705

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 423, 611, 1833, 3637, 5499, 10911, 32733, 47281, 141843, 170939, 425529, 512817, 1538451, 2222207, 6666621, 19999863]

約数ペア:

[(1, 19999863), (3, 6666621), (9, 2222207), (13, 1538451), (39, 512817), (47, 425529), (117, 170939), (141, 141843), (423, 47281), (611, 32733), (1833, 10911), (3637, 5499)]