21596113

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 27743040

約数和(自身を除く): 6146927

約数列:

[1, 7, 11, 49, 77, 103, 389, 539, 721, 1133, 2723, 4279, 5047, 7931, 19061, 29953, 40067, 55517, 209671, 280469, 440737, 1963283, 3085159, 21596113]

約数ペア:

[(1, 21596113), (7, 3085159), (11, 1963283), (49, 440737), (77, 280469), (103, 209671), (389, 55517), (539, 40067), (721, 29953), (1133, 19061), (2723, 7931), (4279, 5047)]