291497157

素因数分解:

$3^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{7829}}^1$

素因数の和:8042

約数の個数: 32

約数和(自身を含む): 496108800

約数和(自身を除く): 204611643

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 197, 591, 1379, 1773, 4137, 5319, 7829, 12411, 23487, 37233, 54803, 70461, 164409, 211383, 493227, 1479681, 1542313, 4626939, 10796191, 13880817, 32388573, 41642451, 97165719, 291497157]

約数ペア:

[(1, 291497157), (3, 97165719), (7, 41642451), (9, 32388573), (21, 13880817), (27, 10796191), (63, 4626939), (189, 1542313), (197, 1479681), (591, 493227), (1379, 211383), (1773, 164409), (4137, 70461), (5319, 54803), (7829, 37233), (12411, 23487)]