19922515

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{619}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 24685920

約数和(自身を除く): 4763405

約数列:

[1, 5, 41, 157, 205, 619, 785, 3095, 6437, 25379, 32185, 97183, 126895, 485915, 3984503, 19922515]

約数ペア:

[(1, 19922515), (5, 3984503), (41, 485915), (157, 126895), (205, 97183), (619, 32185), (785, 25379), (3095, 6437)]