198713571

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71147}}^1$

素因数の和:71183

約数の個数: 24

約数和(自身を含む): 324434880

約数和(自身を除く): 125721309

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 71147, 213441, 498029, 1351793, 1494087, 3486203, 4055379, 9462551, 10458609, 28387653, 66237857, 198713571]

約数ペア:

[(1, 198713571), (3, 66237857), (7, 28387653), (19, 10458609), (21, 9462551), (49, 4055379), (57, 3486203), (133, 1494087), (147, 1351793), (399, 498029), (931, 213441), (2793, 71147)]