18907784392

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2577397}}^1$

素因数の和:2577541

約数の個数: 32

約数和(自身を含む): 40825984320

約数和(自身を除く): 21918199928

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 262, 524, 917, 1048, 1834, 3668, 7336, 2577397, 5154794, 10309588, 18041779, 20619176, 36083558, 72167116, 144334232, 337639007, 675278014, 1350556028, 2363473049, 2701112056, 4726946098, 9453892196, 18907784392]

約数ペア:

[(1, 18907784392), (2, 9453892196), (4, 4726946098), (7, 2701112056), (8, 2363473049), (14, 1350556028), (28, 675278014), (56, 337639007), (131, 144334232), (262, 72167116), (524, 36083558), (917, 20619176), (1048, 18041779), (1834, 10309588), (3668, 5154794), (7336, 2577397)]