21242536

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2729}}^1$

素因数の和:2881

約数の個数: 32

約数和(自身を含む): 45864000

約数和(自身を除く): 24621464

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 973, 1112, 1946, 2729, 3892, 5458, 7784, 10916, 19103, 21832, 38206, 76412, 152824, 379331, 758662, 1517324, 2655317, 3034648, 5310634, 10621268, 21242536]

約数ペア:

[(1, 21242536), (2, 10621268), (4, 5310634), (7, 3034648), (8, 2655317), (14, 1517324), (28, 758662), (56, 379331), (139, 152824), (278, 76412), (556, 38206), (973, 21832), (1112, 19103), (1946, 10916), (2729, 7784), (3892, 5458)]