1389490371

素因数分解:

$3^2\times {\mathrm{97}}^1\times {\mathrm{677}}^1\times {\mathrm{2351}}^1$

素因数の和:3131

約数の個数: 24

約数和(自身を含む): 2031591744

約数和(自身を除く): 642101373

約数列:

[1, 3, 9, 97, 291, 677, 873, 2031, 2351, 6093, 7053, 21159, 65669, 197007, 228047, 591021, 684141, 1591627, 2052423, 4774881, 14324643, 154387819, 463163457, 1389490371]

約数ペア:

[(1, 1389490371), (3, 463163457), (9, 154387819), (97, 14324643), (291, 4774881), (677, 2052423), (873, 1591627), (2031, 684141), (2351, 591021), (6093, 228047), (7053, 197007), (21159, 65669)]