26987985

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1801}}^1$

素因数の和:1855

約数の個数: 40

約数和(自身を含む): 49713576

約数和(自身を除く): 22725591

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 111, 135, 185, 333, 405, 555, 999, 1665, 1801, 2997, 4995, 5403, 9005, 14985, 16209, 27015, 48627, 66637, 81045, 145881, 199911, 243135, 333185, 599733, 729405, 999555, 1799199, 2998665, 5397597, 8995995, 26987985]

約数ペア:

[(1, 26987985), (3, 8995995), (5, 5397597), (9, 2998665), (15, 1799199), (27, 999555), (37, 729405), (45, 599733), (81, 333185), (111, 243135), (135, 199911), (185, 145881), (333, 81045), (405, 66637), (555, 48627), (999, 27015), (1665, 16209), (1801, 14985), (2997, 9005), (4995, 5403)]