21268562

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2161}}^1$

素因数の和:2226

約数の個数: 32

約数和(自身を含む): 39434880

約数和(自身を除く): 18166318

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 266, 518, 703, 1406, 2161, 4322, 4921, 9842, 15127, 30254, 41059, 79957, 82118, 159914, 287413, 559699, 574826, 1119398, 1519183, 3038366, 10634281, 21268562]

約数ペア:

[(1, 21268562), (2, 10634281), (7, 3038366), (14, 1519183), (19, 1119398), (37, 574826), (38, 559699), (74, 287413), (133, 159914), (259, 82118), (266, 79957), (518, 41059), (703, 30254), (1406, 15127), (2161, 9842), (4322, 4921)]