19870293651

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1577383}}^1$

素因数の和:1577435

約数の個数: 32

約数和(自身を含む): 31800061440

約数和(自身を除く): 11929767789

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 663, 741, 969, 4199, 12597, 1577383, 4732149, 20505979, 26815511, 29970277, 61517937, 80446533, 89910831, 348601643, 389613601, 509494709, 1045804929, 1168840803, 1528484127, 6623431217, 19870293651]

約数ペア:

[(1, 19870293651), (3, 6623431217), (13, 1528484127), (17, 1168840803), (19, 1045804929), (39, 509494709), (51, 389613601), (57, 348601643), (221, 89910831), (247, 80446533), (323, 61517937), (663, 29970277), (741, 26815511), (969, 20505979), (4199, 4732149), (12597, 1577383)]