21387984304

素因数分解:

$2^4\times {\mathrm{3631}}^1\times {\mathrm{368149}}^1$

素因数の和:371788

約数の個数: 20

約数和(自身を含む): 41450744800

約数和(自身を除く): 20062760496

約数列:

[1, 2, 4, 8, 16, 3631, 7262, 14524, 29048, 58096, 368149, 736298, 1472596, 2945192, 5890384, 1336749019, 2673498038, 5346996076, 10693992152, 21387984304]

約数ペア:

[(1, 21387984304), (2, 10693992152), (4, 5346996076), (8, 2673498038), (16, 1336749019), (3631, 5890384), (7262, 2945192), (14524, 1472596), (29048, 736298), (58096, 368149)]