19377215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 28026432

約数和(自身を除く): 8649217

約数列:

[1, 5, 11, 13, 41, 55, 65, 143, 205, 451, 533, 661, 715, 2255, 2665, 3305, 5863, 7271, 8593, 27101, 29315, 36355, 42965, 94523, 135505, 298111, 352313, 472615, 1490555, 1761565, 3875443, 19377215]

約数ペア:

[(1, 19377215), (5, 3875443), (11, 1761565), (13, 1490555), (41, 472615), (55, 352313), (65, 298111), (143, 135505), (205, 94523), (451, 42965), (533, 36355), (661, 29315), (715, 27101), (2255, 8593), (2665, 7271), (3305, 5863)]