28888910379

素因数分解:

$3^2\times 7^1\times {\mathrm{647}}^1\times {\mathrm{827}}^1\times {\mathrm{857}}^1$

素因数の和:2344

約数の個数: 48

約数和(自身を含む): 47876894208

約数和(自身を除く): 18987983829

約数列:

[1, 3, 7, 9, 21, 63, 647, 827, 857, 1941, 2481, 2571, 4529, 5789, 5823, 5999, 7443, 7713, 13587, 17367, 17997, 40761, 52101, 53991, 535069, 554479, 708739, 1605207, 1663437, 2126217, 3745483, 3881353, 4815621, 4961173, 4990311, 6378651, 11236449, 11644059, 14883519, 33709347, 34932177, 44650557, 458554133, 1375662399, 3209878931, 4126987197, 9629636793, 28888910379]

約数ペア:

[(1, 28888910379), (3, 9629636793), (7, 4126987197), (9, 3209878931), (21, 1375662399), (63, 458554133), (647, 44650557), (827, 34932177), (857, 33709347), (1941, 14883519), (2481, 11644059), (2571, 11236449), (4529, 6378651), (5789, 4990311), (5823, 4961173), (5999, 4815621), (7443, 3881353), (7713, 3745483), (13587, 2126217), (17367, 1663437), (17997, 1605207), (40761, 708739), (52101, 554479), (53991, 535069)]