28178007

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3457}}^1$

素因数の和:3503

約数の個数: 32

約数和(自身を含む): 46475520

約数和(自身を除く): 18297513

約数列:

[1, 3, 11, 13, 19, 33, 39, 57, 143, 209, 247, 429, 627, 741, 2717, 3457, 8151, 10371, 38027, 44941, 65683, 114081, 134823, 197049, 494351, 722513, 853879, 1483053, 2167539, 2561637, 9392669, 28178007]

約数ペア:

[(1, 28178007), (3, 9392669), (11, 2561637), (13, 2167539), (19, 1483053), (33, 853879), (39, 722513), (57, 494351), (143, 197049), (209, 134823), (247, 114081), (429, 65683), (627, 44941), (741, 38027), (2717, 10371), (3457, 8151)]