19213579

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 26357760

約数和(自身を除く): 7144181

約数列:

[1, 7, 11, 19, 23, 77, 133, 161, 209, 253, 437, 571, 1463, 1771, 3059, 3997, 4807, 6281, 10849, 13133, 33649, 43967, 75943, 91931, 119339, 144463, 249527, 835373, 1011241, 1746689, 2744797, 19213579]

約数ペア:

[(1, 19213579), (7, 2744797), (11, 1746689), (19, 1011241), (23, 835373), (77, 249527), (133, 144463), (161, 119339), (209, 91931), (253, 75943), (437, 43967), (571, 33649), (1463, 13133), (1771, 10849), (3059, 6281), (3997, 4807)]