19013819

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 22318464

約数和(自身を除く): 3304645

約数列:

[1, 11, 31, 37, 121, 137, 341, 407, 1147, 1507, 3751, 4247, 4477, 5069, 12617, 16577, 46717, 55759, 138787, 157139, 513887, 613349, 1728529, 19013819]

約数ペア:

[(1, 19013819), (11, 1728529), (31, 613349), (37, 513887), (121, 157139), (137, 138787), (341, 55759), (407, 46717), (1147, 16577), (1507, 12617), (3751, 5069), (4247, 4477)]