641285343

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{168449}}^1$

素因数の和:168508

約数の個数: 20

約数和(自身を含む): 978357600

約数和(自身を除く): 337072257

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 168449, 505347, 1516041, 4548123, 7917103, 13644369, 23751309, 71253927, 213761781, 641285343]

約数ペア:

[(1, 641285343), (3, 213761781), (9, 71253927), (27, 23751309), (47, 13644369), (81, 7917103), (141, 4548123), (423, 1516041), (1269, 505347), (3807, 168449)]