20995472

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6661}}^1$

素因数の和:6866

約数の個数: 20

約数和(自身を含む): 40891356

約数和(自身を除く): 19895884

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6661, 13322, 26644, 53288, 106576, 1312217, 2624434, 5248868, 10497736, 20995472]

約数ペア:

[(1, 20995472), (2, 10497736), (4, 5248868), (8, 2624434), (16, 1312217), (197, 106576), (394, 53288), (788, 26644), (1576, 13322), (3152, 6661)]