128007159

素因数分解:

$3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{4127}}^1$

素因数の和:4355

約数の個数: 24

約数和(自身を含む): 199531008

約数和(自身を除く): 71523849

約数列:

[1, 3, 7, 21, 49, 147, 211, 633, 1477, 4127, 4431, 10339, 12381, 28889, 31017, 86667, 202223, 606669, 870797, 2612391, 6095579, 18286737, 42669053, 128007159]

約数ペア:

[(1, 128007159), (3, 42669053), (7, 18286737), (21, 6095579), (49, 2612391), (147, 870797), (211, 606669), (633, 202223), (1477, 86667), (4127, 31017), (4431, 28889), (10339, 12381)]