524288511

素因数分解:

$3^3\times {\mathrm{197}}^1\times {\mathrm{241}}^1\times {\mathrm{409}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 785822400

約数和(自身を除く): 261533889

約数列:

[1, 3, 9, 27, 197, 241, 409, 591, 723, 1227, 1773, 2169, 3681, 5319, 6507, 11043, 47477, 80573, 98569, 142431, 241719, 295707, 427293, 725157, 887121, 1281879, 2175471, 2661363, 19418093, 58254279, 174762837, 524288511]

約数ペア:

[(1, 524288511), (3, 174762837), (9, 58254279), (27, 19418093), (197, 2661363), (241, 2175471), (409, 1281879), (591, 887121), (723, 725157), (1227, 427293), (1773, 295707), (2169, 241719), (3681, 142431), (5319, 98569), (6507, 80573), (11043, 47477)]