17281719

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21101}}^1$

素因数の和:21127

約数の個数: 24

約数和(自身を含む): 30724512

約数和(自身を除く): 13442793

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 21101, 63303, 147707, 189909, 274313, 443121, 822939, 1329363, 1920191, 2468817, 5760573, 17281719]

約数ペア:

[(1, 17281719), (3, 5760573), (7, 2468817), (9, 1920191), (13, 1329363), (21, 822939), (39, 443121), (63, 274313), (91, 189909), (117, 147707), (273, 63303), (819, 21101)]