21485014768

素因数分解:

$2^4\times 7^1\times {\mathrm{2131}}^1\times {\mathrm{90019}}^1$

素因数の和:92165

約数の個数: 40

約数和(自身を含む): 47596814720

約数和(自身を除く): 26111799952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2131, 4262, 8524, 14917, 17048, 29834, 34096, 59668, 90019, 119336, 180038, 238672, 360076, 630133, 720152, 1260266, 1440304, 2520532, 5041064, 10082128, 191830489, 383660978, 767321956, 1342813423, 1534643912, 2685626846, 3069287824, 5371253692, 10742507384, 21485014768]

約数ペア:

[(1, 21485014768), (2, 10742507384), (4, 5371253692), (7, 3069287824), (8, 2685626846), (14, 1534643912), (16, 1342813423), (28, 767321956), (56, 383660978), (112, 191830489), (2131, 10082128), (4262, 5041064), (8524, 2520532), (14917, 1440304), (17048, 1260266), (29834, 720152), (34096, 630133), (59668, 360076), (90019, 238672), (119336, 180038)]