77770707

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{991}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 123039744

約数和(自身を除く): 45269037

約数列:

[1, 3, 7, 21, 37, 101, 111, 259, 303, 707, 777, 991, 2121, 2973, 3737, 6937, 11211, 20811, 26159, 36667, 78477, 100091, 110001, 256669, 300273, 700637, 770007, 2101911, 3703367, 11110101, 25923569, 77770707]

約数ペア:

[(1, 77770707), (3, 25923569), (7, 11110101), (21, 3703367), (37, 2101911), (101, 770007), (111, 700637), (259, 300273), (303, 256669), (707, 110001), (777, 100091), (991, 78477), (2121, 36667), (2973, 26159), (3737, 20811), (6937, 11211)]