19577313

素因数分解:

$3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:554

約数の個数: 36

約数和(自身を含む): 33291648

約数和(自身を除く): 13714335

約数列:

[1, 3, 7, 9, 21, 49, 63, 103, 147, 309, 431, 441, 721, 927, 1293, 2163, 3017, 3879, 5047, 6489, 9051, 15141, 21119, 27153, 44393, 45423, 63357, 133179, 190071, 310751, 399537, 932253, 2175257, 2796759, 6525771, 19577313]

約数ペア:

[(1, 19577313), (3, 6525771), (7, 2796759), (9, 2175257), (21, 932253), (49, 399537), (63, 310751), (103, 190071), (147, 133179), (309, 63357), (431, 45423), (441, 44393), (721, 27153), (927, 21119), (1293, 15141), (2163, 9051), (3017, 6489), (3879, 5047)]