71165871

素因数分解:

$3^4\times 7^1\times {\mathrm{313}}^1\times {\mathrm{401}}^1$

素因数の和:733

約数の個数: 40

約数和(自身を含む): 122188704

約数和(自身を除く): 51022833

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 313, 401, 567, 939, 1203, 2191, 2807, 2817, 3609, 6573, 8421, 8451, 10827, 19719, 25263, 25353, 32481, 59157, 75789, 125513, 177471, 227367, 376539, 878591, 1129617, 2635773, 3388851, 7907319, 10166553, 23721957, 71165871]

約数ペア:

[(1, 71165871), (3, 23721957), (7, 10166553), (9, 7907319), (21, 3388851), (27, 2635773), (63, 1129617), (81, 878591), (189, 376539), (313, 227367), (401, 177471), (567, 125513), (939, 75789), (1203, 59157), (2191, 32481), (2807, 25353), (2817, 25263), (3609, 19719), (6573, 10827), (8421, 8451)]