20709135

素因数分解:

$3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1171}}^1$

素因数の和:1316

約数の個数: 32

約数和(自身を含む): 37128960

約数和(自身を除く): 16419825

約数列:

[1, 3, 5, 9, 15, 27, 45, 131, 135, 393, 655, 1171, 1179, 1965, 3513, 3537, 5855, 5895, 10539, 17565, 17685, 31617, 52695, 153401, 158085, 460203, 767005, 1380609, 2301015, 4141827, 6903045, 20709135]

約数ペア:

[(1, 20709135), (3, 6903045), (5, 4141827), (9, 2301015), (15, 1380609), (27, 767005), (45, 460203), (131, 158085), (135, 153401), (393, 52695), (655, 31617), (1171, 17685), (1179, 17565), (1965, 10539), (3513, 5895), (3537, 5855)]