18776427

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 28089600

約数和(自身を除く): 9313173

約数列:

[1, 3, 19, 29, 37, 57, 87, 111, 307, 551, 703, 921, 1073, 1653, 2109, 3219, 5833, 8903, 11359, 17499, 20387, 26709, 34077, 61161, 169157, 215821, 329411, 507471, 647463, 988233, 6258809, 18776427]

約数ペア:

[(1, 18776427), (3, 6258809), (19, 988233), (29, 647463), (37, 507471), (57, 329411), (87, 215821), (111, 169157), (307, 61161), (551, 34077), (703, 26709), (921, 20387), (1073, 17499), (1653, 11359), (2109, 8903), (3219, 5833)]