19945717

素因数分解:

${\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 22484160

約数和(自身を除く): 2538443

約数列:

[1, 11, 59, 73, 421, 649, 803, 4307, 4631, 24839, 30733, 47377, 273229, 338063, 1813247, 19945717]

約数ペア:

[(1, 19945717), (11, 1813247), (59, 338063), (73, 273229), (421, 47377), (649, 30733), (803, 24839), (4307, 4631)]