78128019

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{2803}}^1$

素因数の和:2991

約数の個数: 24

約数和(自身を含む): 119562560

約数和(自身を除く): 41434541

約数列:

[1, 3, 9, 19, 57, 163, 171, 489, 1467, 2803, 3097, 8409, 9291, 25227, 27873, 53257, 159771, 456889, 479313, 1370667, 4112001, 8680891, 26042673, 78128019]

約数ペア:

[(1, 78128019), (3, 26042673), (9, 8680891), (19, 4112001), (57, 1370667), (163, 479313), (171, 456889), (489, 159771), (1467, 53257), (2803, 27873), (3097, 25227), (8409, 9291)]