1918887568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{9225421}}^1$

素因数の和:9225442

約数の個数: 20

約数和(自身を含む): 4003833148

約数和(自身を除く): 2084945580

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 9225421, 18450842, 36901684, 73803368, 119930473, 147606736, 239860946, 479721892, 959443784, 1918887568]

約数ペア:

[(1, 1918887568), (2, 959443784), (4, 479721892), (8, 239860946), (13, 147606736), (16, 119930473), (26, 73803368), (52, 36901684), (104, 18450842), (208, 9225421)]