20391316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{6917}}^1$

素因数の和:6999

約数の個数: 24

約数和(自身を含む): 39515616

約数和(自身を除く): 19124300

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 268, 737, 1474, 2948, 6917, 13834, 27668, 76087, 152174, 304348, 463439, 926878, 1853756, 5097829, 10195658, 20391316]

約数ペア:

[(1, 20391316), (2, 10195658), (4, 5097829), (11, 1853756), (22, 926878), (44, 463439), (67, 304348), (134, 152174), (268, 76087), (737, 27668), (1474, 13834), (2948, 6917)]