20535009

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 10568991

約数列:

[1, 3, 11, 33, 53, 59, 159, 177, 199, 583, 597, 649, 1749, 1947, 2189, 3127, 6567, 9381, 10547, 11741, 31641, 34397, 35223, 103191, 116017, 129151, 348051, 387453, 622273, 1866819, 6845003, 20535009]

約数ペア:

[(1, 20535009), (3, 6845003), (11, 1866819), (33, 622273), (53, 387453), (59, 348051), (159, 129151), (177, 116017), (199, 103191), (583, 35223), (597, 34397), (649, 31641), (1749, 11741), (1947, 10547), (2189, 9381), (3127, 6567)]