18707121412

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2579581}}^1$

素因数の和:2579636

約数の個数: 36

約数和(自身を含む): 39111622284

約数和(自身を除く): 20404500872

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 518, 1036, 1813, 3626, 7252, 2579581, 5159162, 10318324, 18057067, 36114134, 72228268, 95444497, 126399469, 190888994, 252798938, 381777988, 505597876, 668111479, 1336222958, 2672445916, 4676780353, 9353560706, 18707121412]

約数ペア:

[(1, 18707121412), (2, 9353560706), (4, 4676780353), (7, 2672445916), (14, 1336222958), (28, 668111479), (37, 505597876), (49, 381777988), (74, 252798938), (98, 190888994), (148, 126399469), (196, 95444497), (259, 72228268), (518, 36114134), (1036, 18057067), (1813, 10318324), (3626, 5159162), (7252, 2579581)]