20178906435

素因数分解:

$3^3\times 5^1\times {\mathrm{727}}^1\times {\mathrm{205603}}^1$

素因数の和:206344

約数の個数: 32

約数和(自身を含む): 35923130880

約数和(自身を除く): 15744224445

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 727, 2181, 3635, 6543, 10905, 19629, 32715, 98145, 205603, 616809, 1028015, 1850427, 3084045, 5551281, 9252135, 27756405, 149473381, 448420143, 747366905, 1345260429, 2242100715, 4035781287, 6726302145, 20178906435]

約数ペア:

[(1, 20178906435), (3, 6726302145), (5, 4035781287), (9, 2242100715), (15, 1345260429), (27, 747366905), (45, 448420143), (135, 149473381), (727, 27756405), (2181, 9252135), (3635, 5551281), (6543, 3084045), (10905, 1850427), (19629, 1028015), (32715, 616809), (98145, 205603)]