20964904

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{137927}}^1$

素因数の和:137952

約数の個数: 16

約数和(自身を含む): 41378400

約数和(自身を除く): 20413496

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 137927, 275854, 551708, 1103416, 2620613, 5241226, 10482452, 20964904]

約数ペア:

[(1, 20964904), (2, 10482452), (4, 5241226), (8, 2620613), (19, 1103416), (38, 551708), (76, 275854), (152, 137927)]