20157568711

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{677}}^1\times {\mathrm{1061}}^1$

素因数の和:1975

約数の個数: 32

約数和(自身を含む): 24423621120

約数和(自身を除く): 4266052409

約数列:

[1, 7, 19, 133, 211, 677, 1061, 1477, 4009, 4739, 7427, 12863, 20159, 28063, 90041, 141113, 142847, 223871, 718297, 999929, 1567097, 2714093, 4253549, 5028079, 13647643, 18998651, 29774843, 95533501, 151560667, 1060924669, 2879652673, 20157568711]

約数ペア:

[(1, 20157568711), (7, 2879652673), (19, 1060924669), (133, 151560667), (211, 95533501), (677, 29774843), (1061, 18998651), (1477, 13647643), (4009, 5028079), (4739, 4253549), (7427, 2714093), (12863, 1567097), (20159, 999929), (28063, 718297), (90041, 223871), (141113, 142847)]