28680717

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 15348723

約数列:

[1, 3, 13, 17, 39, 51, 181, 221, 239, 543, 663, 717, 2353, 3077, 3107, 4063, 7059, 9231, 9321, 12189, 40001, 43259, 52819, 120003, 129777, 158457, 562367, 735403, 1687101, 2206209, 9560239, 28680717]

約数ペア:

[(1, 28680717), (3, 9560239), (13, 2206209), (17, 1687101), (39, 735403), (51, 562367), (181, 158457), (221, 129777), (239, 120003), (543, 52819), (663, 43259), (717, 40001), (2353, 12189), (3077, 9321), (3107, 9231), (4063, 7059)]