28404519

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{907}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 45153024

約数和(自身を除く): 16748505

約数列:

[1, 3, 11, 13, 33, 39, 73, 143, 219, 429, 803, 907, 949, 2409, 2721, 2847, 9977, 10439, 11791, 29931, 31317, 35373, 66211, 129701, 198633, 389103, 728321, 860743, 2184963, 2582229, 9468173, 28404519]

約数ペア:

[(1, 28404519), (3, 9468173), (11, 2582229), (13, 2184963), (33, 860743), (39, 728321), (73, 389103), (143, 198633), (219, 129701), (429, 66211), (803, 35373), (907, 31317), (949, 29931), (2409, 11791), (2721, 10439), (2847, 9977)]