19089889

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 25276160

約数和(自身を除く): 6186271

約数列:

[1, 7, 13, 19, 61, 91, 133, 181, 247, 427, 793, 1159, 1267, 1729, 2353, 3439, 5551, 8113, 11041, 15067, 16471, 24073, 44707, 77287, 105469, 143533, 209779, 312949, 1004731, 1468453, 2727127, 19089889]

約数ペア:

[(1, 19089889), (7, 2727127), (13, 1468453), (19, 1004731), (61, 312949), (91, 209779), (133, 143533), (181, 105469), (247, 77287), (427, 44707), (793, 24073), (1159, 16471), (1267, 15067), (1729, 11041), (2353, 8113), (3439, 5551)]