21342664

素因数分解:

$2^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{2203}}^1$

素因数の和:2389

約数の個数: 32

約数和(自身を含む): 46019520

約数和(自身を除く): 24676856

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 173, 346, 692, 1211, 1384, 2203, 2422, 4406, 4844, 8812, 9688, 15421, 17624, 30842, 61684, 123368, 381119, 762238, 1524476, 2667833, 3048952, 5335666, 10671332, 21342664]

約数ペア:

[(1, 21342664), (2, 10671332), (4, 5335666), (7, 3048952), (8, 2667833), (14, 1524476), (28, 762238), (56, 381119), (173, 123368), (346, 61684), (692, 30842), (1211, 17624), (1384, 15421), (2203, 9688), (2422, 8812), (4406, 4844)]