21863256908

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{3232297}}^1$

素因数の和:3232409

約数の個数: 24

約数和(自身を含む): 40726954800

約数和(自身を除く): 18863697892

約数列:

[1, 2, 4, 19, 38, 76, 89, 178, 356, 1691, 3382, 6764, 3232297, 6464594, 12929188, 61413643, 122827286, 245654572, 287674433, 575348866, 1150697732, 5465814227, 10931628454, 21863256908]

約数ペア:

[(1, 21863256908), (2, 10931628454), (4, 5465814227), (19, 1150697732), (38, 575348866), (76, 287674433), (89, 245654572), (178, 122827286), (356, 61413643), (1691, 12929188), (3382, 6464594), (6764, 3232297)]