20450157

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{433}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 33831168

約数和(自身を除く): 13381011

約数列:

[1, 3, 7, 13, 21, 39, 91, 173, 273, 433, 519, 1211, 1299, 2249, 3031, 3633, 5629, 6747, 9093, 15743, 16887, 39403, 47229, 74909, 118209, 224727, 524363, 973817, 1573089, 2921451, 6816719, 20450157]

約数ペア:

[(1, 20450157), (3, 6816719), (7, 2921451), (13, 1573089), (21, 973817), (39, 524363), (91, 224727), (173, 118209), (273, 74909), (433, 47229), (519, 39403), (1211, 16887), (1299, 15743), (2249, 9093), (3031, 6747), (3633, 5629)]