28860909

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1213}}^1$

素因数の和:1337

約数の個数: 32

約数和(自身を含む): 48482304

約数和(自身を除く): 19621395

約数列:

[1, 3, 7, 11, 21, 33, 77, 103, 231, 309, 721, 1133, 1213, 2163, 3399, 3639, 7931, 8491, 13343, 23793, 25473, 40029, 93401, 124939, 280203, 374817, 874573, 1374329, 2623719, 4122987, 9620303, 28860909]

約数ペア:

[(1, 28860909), (3, 9620303), (7, 4122987), (11, 2623719), (21, 1374329), (33, 874573), (77, 374817), (103, 280203), (231, 124939), (309, 93401), (721, 40029), (1133, 25473), (1213, 23793), (2163, 13343), (3399, 8491), (3639, 7931)]