81280998

素因数分解:

$2^1\times 3^2\times {\mathrm{211}}^1\times {\mathrm{21401}}^1$

素因数の和:21620

約数の個数: 24

約数和(自身を含む): 176951736

約数和(自身を除く): 95670738

約数列:

[1, 2, 3, 6, 9, 18, 211, 422, 633, 1266, 1899, 3798, 21401, 42802, 64203, 128406, 192609, 385218, 4515611, 9031222, 13546833, 27093666, 40640499, 81280998]

約数ペア:

[(1, 81280998), (2, 40640499), (3, 27093666), (6, 13546833), (9, 9031222), (18, 4515611), (211, 385218), (422, 192609), (633, 128406), (1266, 64203), (1899, 42802), (3798, 21401)]