19930985

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{863}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 24883200

約数和(自身を除く): 4952215

約数列:

[1, 5, 31, 149, 155, 745, 863, 4315, 4619, 23095, 26753, 128587, 133765, 642935, 3986197, 19930985]

約数ペア:

[(1, 19930985), (5, 3986197), (31, 642935), (149, 133765), (155, 128587), (745, 26753), (863, 23095), (4315, 4619)]