1280908839

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{7789}}^1$

素因数の和:8031

約数の個数: 32

約数和(自身を含む): 2010193920

約数和(自身を除く): 729285081

約数列:

[1, 3, 7, 21, 41, 123, 191, 287, 573, 861, 1337, 4011, 7789, 7831, 23367, 23493, 54523, 54817, 163569, 164451, 319349, 958047, 1487699, 2235443, 4463097, 6706329, 10413893, 31241679, 60995659, 182986977, 426969613, 1280908839]

約数ペア:

[(1, 1280908839), (3, 426969613), (7, 182986977), (21, 60995659), (41, 31241679), (123, 10413893), (191, 6706329), (287, 4463097), (573, 2235443), (861, 1487699), (1337, 958047), (4011, 319349), (7789, 164451), (7831, 163569), (23367, 54817), (23493, 54523)]