31450731

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 49805280

約数和(自身を除く): 18354549

約数列:

[1, 3, 13, 17, 39, 41, 51, 89, 123, 169, 221, 267, 507, 533, 663, 697, 1157, 1513, 1599, 2091, 2873, 3471, 3649, 4539, 6929, 8619, 9061, 10947, 15041, 19669, 20787, 27183, 45123, 47437, 59007, 62033, 117793, 142311, 186099, 255697, 353379, 616681, 767091, 806429, 1850043, 2419287, 10483577, 31450731]

約数ペア:

[(1, 31450731), (3, 10483577), (13, 2419287), (17, 1850043), (39, 806429), (41, 767091), (51, 616681), (89, 353379), (123, 255697), (169, 186099), (221, 142311), (267, 117793), (507, 62033), (533, 59007), (663, 47437), (697, 45123), (1157, 27183), (1513, 20787), (1599, 19669), (2091, 15041), (2873, 10947), (3471, 9061), (3649, 8619), (4539, 6929)]