3989817

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:452

約数の個数: 28

約数和(自身を含む): 6457444

約数和(自身を除く): 2467627

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 421, 729, 1053, 1263, 3159, 3789, 5473, 9477, 11367, 16419, 34101, 49257, 102303, 147771, 306909, 443313, 1329939, 3989817]

約数ペア:

[(1, 3989817), (3, 1329939), (9, 443313), (13, 306909), (27, 147771), (39, 102303), (81, 49257), (117, 34101), (243, 16419), (351, 11367), (421, 9477), (729, 5473), (1053, 3789), (1263, 3159)]