21024393

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1669}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 33667200

約数和(自身を除く): 12642807

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 663, 741, 969, 1669, 4199, 5007, 12597, 21697, 28373, 31711, 65091, 85119, 95133, 368849, 412243, 539087, 1106547, 1236729, 1617261, 7008131, 21024393]

約数ペア:

[(1, 21024393), (3, 7008131), (13, 1617261), (17, 1236729), (19, 1106547), (39, 539087), (51, 412243), (57, 368849), (221, 95133), (247, 85119), (323, 65091), (663, 31711), (741, 28373), (969, 21697), (1669, 12597), (4199, 5007)]