19771388

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1873}}^1$

素因数の和:1926

約数の個数: 48

約数和(自身を含む): 44076480

約数和(自身を除く): 24305092

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 182, 203, 364, 377, 406, 754, 812, 1508, 1873, 2639, 3746, 5278, 7492, 10556, 13111, 24349, 26222, 48698, 52444, 54317, 97396, 108634, 170443, 217268, 340886, 380219, 681772, 706121, 760438, 1412242, 1520876, 2824484, 4942847, 9885694, 19771388]

約数ペア:

[(1, 19771388), (2, 9885694), (4, 4942847), (7, 2824484), (13, 1520876), (14, 1412242), (26, 760438), (28, 706121), (29, 681772), (52, 380219), (58, 340886), (91, 217268), (116, 170443), (182, 108634), (203, 97396), (364, 54317), (377, 52444), (406, 48698), (754, 26222), (812, 24349), (1508, 13111), (1873, 10556), (2639, 7492), (3746, 5278)]