1639113847

素因数分解:

$7^2\times {\mathrm{107}}^1\times {\mathrm{199}}^1\times {\mathrm{1571}}^1$

素因数の和:1891

約数の個数: 24

約数和(自身を含む): 1935446400

約数和(自身を除く): 296332553

約数列:

[1, 7, 49, 107, 199, 749, 1393, 1571, 5243, 9751, 10997, 21293, 76979, 149051, 168097, 312629, 1043357, 1176679, 2188403, 8236753, 15318821, 33451303, 234159121, 1639113847]

約数ペア:

[(1, 1639113847), (7, 234159121), (49, 33451303), (107, 15318821), (199, 8236753), (749, 2188403), (1393, 1176679), (1571, 1043357), (5243, 312629), (9751, 168097), (10997, 149051), (21293, 76979)]